e) slate, oil that reaches the surface can form: b) the crust is thicker b) rapid seafloor spreading displaces water from ocean basins c) the Caribbean a) shale Water usually helps to dissolve limestone by forming a weak, carbonic acid. d) marine terraces c) we conclude from observations to form theories. Terminologies used in groundwater hydrology Although the earth's materials i . What does the porosity of a material depend on? c) the upper parts of the glacier can fracture The speed of flow in rocks is extremely slow in comparison with surface flow, even for rocks with high hydraulic conductivities. b) cattle ranching c) the process by which waves move material along the bottom in very deep water c. Cl2\mathrm{Cl}_2Cl2 will have a higher boiling point than Ar\mathrm{Ar}Ar. pore spaces in the unsaturated zone contain air with no water, there is an unsaturated zone below some rivers. characteristics found in all good aquifers. If the rocks have low porosity and permeability, the radius of influence will be larger. In most cases, total porosity values reported for uncemented granular material and rocks with wellconnected pores and fractures can be used to represent effective porosity. Calculate the following. A coarse soil has bigger particles than a fine soil, but it has less porosity, or overall pore space. d) south America rifted apart from Africa d) it is converted into feldspar and weathers into clay, c) it ends up as sand in rivers, dunes, and beaches, which of the following is not a source of material for soil? c) piling of sediment down the front of a dune or ripple Which of the following materials has low porosity and low permeability. Course Hero is not sponsored or endorsed by any college or university. c) mudcracks are formed in deep water environments where sand and mud can be deposited in thin layers the ability of a material to allow fluids to pass through an interconnected network of pores. d) some parts that are reddish and others that are not e) both a and b, b) the atmosphere rotating faster at the equator than at the poles, surface ocean currents circulate in ocean basins: b) sulfates b) lakes c) abundant magma formed within a typical mid ocean ridge c) oceanic trenches c) in the southern hemisphere "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%. In a material that holds groundwater porosity A controls the amount of water. -the amount of rainfall c) floods from catastrophic melting of ice c) changes in the isotopic composition of marine shells b) determines the compostion of the cement between grains and clasts d) all of the above a) alluvial fan (Source: Environment Canada) b) a depth equal to three times the wavelength of waves For example, a fine soil has smaller but more numerous pores than a coarse soil. d) water is pulled by gravity of the moon d) the lava flow forms lava tubes, Hazards associated with basaltic lava flows and eruptions are: b) debris flow The porosity of rocks may be increased by processes that occur after the rocks have formed. e) all of these, Loaning of atoms reflects what type of bonding? The main layers of the Earth in correct order, from the surface moving down is: Geology can help us learn about Earth's past by studying. which of the following best explains what a contour line is? a) shallow seas that are relatively free of suspended sediment It originates as rainfall or snow, and then moves through the soil into the groundwater system, where it eventually makes its way back to surface streams, lakes, or oceans. e) weather it is a permanent or ephemeral stream, d) the velocity and turbulence of the current, which of the following features are generally not associated with mountain streams and rivers? b) the relationship between regional elevations and thickness of crust. Soil texture can also affect soil porosity There are three main soil textures: sand, silt, and clay. The permittivity develops the electric field, whereas the permeability develops the magnetic field. e) none of these, which of the following is not one of the main families of rocks? e) continental shelves, which of the following parts of the seafloor are the shallowest ? when groundwater is extracted (overpumping) and the grains are compacted to fill the empty space e) all of the above are ways to form layers, e) all of the above are ways to form layers, Which of the following does not help define layers in some sedimentary rocks? . b) to one or more theories that help explain observed changes e. MgO\mathrm{MgO}MgO will have a higher vapor pressure at 25C25{ }^{\circ} \mathrm{C}25C than CH3CH2OH\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}CH3CH2OH. b) contamination moves opposite to the direction of groundwater flow d) all of these e) none of the above, d) south America rifted apart from Africa, Which of the following is not a way in which we map and investigate the seafloor? d) oversteepening of cliffs or hillslopes during road construction d) heating occurs in deserts of the American Southwest during summer time e) we use all of these techniques, what is associated with reversed magnetic polarity? from confined aquifer c) Jurrasic d) prettiness, a mineral property that can be observed without using a test is: e) none of the above, a) the depth to which wave action extends, which of the following can influence weather a shoreline gains or loses sand with time? b) the dissolved and suspended load of a river a) s strong current The unsaturated zone, immediately below b) reverse b) all the rocks were depoisted with the youngest on the bottom Leaks of contaminated flowback water Poor Management, Which of the following statements about groundwater is FALSE? b) the magnetic properties of hydrogen Porosity is the amount of free space within a material. a) industry 6. attract more contaminants c) shaking during an earthquake The area or zone where groundwater emerges from the aquifer. B. . a) steepness of slope After sufficient time is allowed for the pores to become saturated (the water volume in the container stops changing), the volume in the beaker is recorded as 108 ml. This process is continued until the sample is fully saturated (as determined by a film of water appearing on the top of the sample). b) grey limestone the amount of water vapor in the air relative to the maximum amount of water vapor the air can hold: D. . a) mineral deposits relate to granites . a) transport of the clast over long distance More specifically, porosity of a rock is a measure of its ability to hold a fluid. d)islands in the southwestern Pacific ocean a) a lake that is above the water table may lose water to groundwater c) limestone a) occurrence of a discrete event like a flood The Open University is authorised and regulated by the Financial Conduct Authority in relation to its secondary activity of credit broking. If youre new to university-level study, read our guide on Where to take your learning next, or find out more about the types of qualifications we offer including entry level c) counterclockwise in the northern hemisphere c) the ocean Types of Aquifers 3. a) forces are pushing inward from all directions by the same amount In the zone of weather called the ____________, pressure always _________ with increasing altitude and temperature usually _________ with increasing altitude. An estimated 77 billion gallons per day of fresh groundwater was pumped in the United States in 1995, which is about 8 percent of the estimated 1 trillion gallons per day of natural recharge to the Nation's groundwater resources. e) none of these, Cali has 2 types of plate boundaries associated with its geology they are ? Groundwater flows at right angles to the equipotential lines in the same way that water flowing down a slope would flow at right angles to the contour lines. When such zones are penetrated by wells, the water rises above the point at which it was first found because a confined aquifer is under pressure exceeding that of atmospheric pressure. Hydrogeology (hydro-meaning water, and -geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in aquifers).The terms groundwater hydrology, geohydrology, and hydrogeology are often used interchangeably.. Hydrogeology is the study of the laws governing the movement of . b) working of clasts by waves on a beach Well Construction 8. a) the depth to which wave action extends Usually. Internal friction and the various paths water takes are factors affecting hydraulic conductivity. A. a) rain drops from via the process of evaporation Much groundwater is used for irrigation. d) dissolving some parts of the rock and carrying the material away c) waves can erode, deposit, or simply transport sediment a) sedimentary e) both a and c, Which of the following landscape features is not common in deserts? c) depends d) petroleum d) continental shelves along passive margins, how did the South Atlantic Ocean form? . b) precipitation refers to minerals coating sand grains with natural cement The international standard letter/number mapping for telephones is: Write a function that returns a number, given an uppercase letter, as follows: Write a test program that prompts the user to enter a phone number as a string. d) all of the above b) volcanic eruption a fossils indicate that a sediment was deposited on land a) there was a lot of gas in the magma defined at body of water at that location Free statement of participation on completion of these courses. c) a burner gives heat through the air without touching the object After dissolution, porosity was greater than before dissolution, increasing by 0.140%, 0.038%, 0.042%, and 0.126%, respectively . d) no waves, what time period do we currently live in? b) leaves and other plant debris d) the upper part of the ground that remains frozen throughout the year, d) the upper part of the ground that remains frozen throughout the year, what rock type is the most common setting for caves formed by dissolution of a rock? d.Estimate the porosity of the sediments in Figures 14a to d, selecting a value from the following ranges for each: less than 10%; 10-20%; 20-30%; 30-40%. a) abrasion is concentrated on the upstream side of obstructions b) near magma but at deep levels Porosity is more associated with storage of water, while permeability is more associated with groundwater movement and flow. c) they can be preserved in ancient tree sap The best aquifers for tapping groundwater have both . Porosity is a description of how much space there could be to hold water under the ground, and permeability describes how those pores are shaped and interconnected. b) sandstone c) convergent c) nuclear energy from the heated uranium-rich rocks d) granite Groundwater separated from atmospheric pressure by relatively impermeable material is termed confined groundwater . c) a change in the supply of sediment a) scratched and polished bedrock d) dikes, coarsely crystalline igneous textures indicate that: b) convection currents in the atmosphere The studied outcrop has a total thickness of about 60 m which was categorized into four microfacies i.e., bioclastic mudstone, bioclastic mud-wackestone, bioclastic . C. It has the capacity to store large amounts of water. c) erosion occurs equally on two sides of a bend This determines how easy it is for water to flow from one pore to the next. This research deals with the detailed physico-mechanical and petrographic investigations of Early Eocene Margalla Hill Limestone at Shah Alla Ditta area Islamabad that aims to explain its microfacies and engineering properties. d) all of the above The effective porosity can then be computed using Equation 6 as 2 cm3/10 cm3 = 0.20. a) the Colorado river b) large cross beds in a well stored sandstone usually indicate deposition by wind d) uncompacted clay However, there are volcanic rocks that contain gas bubbles and some of these have high porosities. In a material that holds groundwater, porosity: controls the amount of water that can be stored, determines the composition of the cement between grains and clasts, does not depend on the size and shape of grains and clasts, is constant from one type of material to another. d) construction of dams for hydroelectric power c) oxidation Imagine pouring water onto . b) 100 meters d) metamorphism b) playa a) the early oceans were salty because comets are dirty snowballs a) because the temp of the oceans decreases from cold glacial streams a) metallic bond If a disturbed unconsolidated sample needs to be repacked into a container for porosity testing, it is best if the degree of compaction is noted for the native field conditions (e.g., by using a cone penetrometer or a standard penetration test). c) a transform fault to a subduction zone a) bouncing sound waves from a ship off the bottom Porosity ultimately affects the amount of water a particular rock type can hold and depends on a couple of different factors. e) all of the above can be, which of the following is a common metamorphic process? Groundwater typically flows through limestones by way of cracks. mimics in a subdued way the topography of the earth's surface. The initial porosity of carbonate rock significantly affected the increase in dissolution-induced porosity. d) thousands of isotopic ages measured by different methods b) steep slopes c) 1 meter a) contamination moves up the slope of groundwater a) a spreading center to a transform fault closed-cell foam).. d) the rock cooled slowly can hold water. c) cementation Saint Helens e) all of the above, a) abrasion is concentrated on the upstream side of obstructions, the size of clast that a river can carry is primarily controlled by: In groundwater assessments, it is the interconnected pore volume occupied by flowing groundwater that is of most interest. a) the magma has a low content of gas d) large, angular, poorly sorted clasts reflect a large amount of transportation c) the sediment becomes more poorly sorted d) recrystalization of minerals Well Development Malla Reddy University Follow Advertisement Advertisement Recommended Groundwater !SYOU co-designed sneakers 2.7k views 29 slides a) well sorted sandstone Porosity is how much water a substance can hold. c) hardness Groundwater is water stored inside the Earth's soil and rock layers. a) elevation of the land surface near the shore e) a and b only, which environments is least likely to deposit sand d) for the sun to decay its size by 50 percent, c) for half of the parent atoms to decay into daughter atoms, which of the following is not a way in which fossils can be preserved? a) curly crystals of frost that form early in the morning e) all of the above affect potential hazards of shorelines, e) all of the above affect potential hazards of shorelines, which of the following most likely indicates that the sea level has fallen relative to the land? e) all the above, which of the following does not affect the potential hazards of a shoreline ? a) two plates are colliding e) all of the above, in what environments does low pressure- high tempereature metamorphism occur? d) all of the above, which of the following is true about how contamination moves in groundwater? We used time-resolved (4-D) microtomographic data to capture the dynamic evolution of the porosity in layered NaCl-NaCl/biotite samples over 1619 and 1932 h of compaction. b) the lava forms a ropy texture c) intermolecular bond c) tectonic subsidence during earthquakes can cause flooding and change local climates c) rock vanish Effective porosity (ne) is defined as the ratio of the volume of interconnected pore spaces (VI) to the total volume (VT) as defined in Equation 6 and illustrated in Figure 7. Porosity can be referred to or considered as the ability of the water to penetrate through the pores contained inside a rock, and the . 5. change flow of water e) a and b only, which of the following is not a type of carbonate rock? d) all of the above, Which of the following is evidence that Earth's history is not short? e) none of these, Which of the following would not be considered a volcanic hazard? b) compaction usually hidden (more arid (hot) deeper, region between ground surface and water table 5. collapses pore space and b) Africa and North America collided to form the Appalachian Mountains c) volcanic glass c) limestone 4. bringing contamination into previously uncontained wells, well ( from below the water table) with a depth of 150 mm = 0.150 m and a surface area of 1 m 2 ). e) a and b only, The Earth's magnetic field is generated by: This is referred to as secondary porosity, to distinguish it from the intergranular, or primary, porosity. with a depth of 1 m, and a surface area of 1 m 2) contains 0.150 m 3 of water (e.g. Making the decision to study can be a big step, which is why youll want a trusted University. c) lava flows Aflow throughpermeabilityporosity . Estimate the porosity of the sediments in Figures 14a to d, selecting a value from the following ranges for each: less than 10%; 10-20%; 20-30%; 30-40%. b) scattered stone (dropstones) in fine grained sediment d) transform faulting uplifts the rocks What Is Porosity And How Is It Related To Permeability? Aquifer Storage and Recovery (ASR) wells are part of a system to take surplus fresh surface water, treat it as required for permit compliance, and then store it in the Floridan Aquifer System (FAS) for subsequent recovery during dry periods. a) most waves are generated by earthquakes and become larger upon approaching the shore c) demobilization of chemical constituents into light and dark bands Groundwater exists everywhere there is porosity. d) the surface area decrease as the rock is fractured b) shallow continental seas b) bottled spring water In-situ- add chemicals to clean it up or microorganisms, area filled with air and water above the water table, water table mimics land surface but does not have same, relief (Hide tip)]. must go thru the unsaturated zone to the saturated zone, when rate of water pumping is higher than rate of recharge Water in the saturated groundwater system moves slowly and may eventually discharge into streams, lakes, and oceans. 35. The amount of water that a rock can store depends on its porosity, which is the proportion of the volume of the rock that consists of pores: The principal factors that control porosity are grain size and shape, the degree of sorting (a well-sorted sediment has a narrow range of grain size), the extent to which cement occupies the pore spaces of grains and the amount of fracturing. c) most groundwater forms when water on the surface infiltrates into the ground b) quartz does not weather and so it keeps the granite from weathering d. number of formula units in 2.99gNaClO2.99 \mathrm{~g} \mathrm{NaClO}2.99gNaClO c) ground water Even so, the packing arrangement will differ, and thus laboratory measurements using recompacted samples provide only approximations of the field effective porosity values. b) coarse granite . Uploaded By ms382587; Pages 62 Ratings 95% (19) 18 out of 19 people found this document helpful; Round particles will pack more tightly than particles with sharp edges. b) lithosphere d) swimming pools, the Coriolis effect in the atmosphere is due to: b) clockwise in the southern hemisphere C. This dissolution widens cracks into caves or caverns. b) salt deposits that formed early in Earth's history become dissolved by modern oceans a) Florida, North Carolina, South Carolina The volume of water needed to saturate the sample is then divided by the sample volume to determine the effective porosity (Equation 6). c) wind a) limestone For most rocks, porosity varies from less than 1% to 40%. b) well sorted coarse grained sediment The definition of hydraulic conductivity (usually denoted "K" in hydrology formulas) is the rate at which water moves through material. d circulation directions are not systematic b) recycled waste water saturated zone- pore spaces, empty spaces contain water c) a 4 billion year age on a rock in Canada water table is not as great as the overlying land, the water table intersects the ground surface, -Surface topography b. HF\mathrm{HF}HF will have a lower vapor pressure at 50C-50^{\circ} \mathrm{C}50C than HBr\mathrm{HBr}HBr. However, groundwater, even flowing through rocks with hydraulic conductivities as high as 1 m per day, will only have a speed of around 3 103 m per day under the hydraulic gradient from the Chilterns to London, and will take thousands of years to travel the same distance. b) mountain belt or island arc b) the magnetic signal of the seafloor formed with this polarity would be weaker compared to adjacent areas of the seafloor d) joints that form when rock pressures are released b) crystals grown in a laboratory 2. subsidence and compaction of the aquifer These pores are isolated from the active groundwater system, thus do not contribute to exchange of groundwater storage or transmission of groundwater. Groundwater moves very slowly through relatively impermeable materials such as clay and shale. a) as small clay minerals that are deposited in lakes and the sea b) a pyroclastic flow c) past events, such as landslides and earthquakes a) Asia rifted apart form Europe e) volcanic glass, which of the following would be considered a shield volcano? Interconnected void space allows groundwater to move into and out of porous material. a) mostly sand b) stresses are pushing inward all directions by the same amount e) a rock formed from a coral reef, which of the following is not involved in turning some sediments into sedimentary rock? It is also possible that, when saturating the sample, some connected pores that are dead-ends will be included in the measurement and some will not (Figure 9). e) none of the above, c) most groundwater forms when water on the surface infiltrates into the ground, which of the following materials probably has the lowest porosity? Therefore, the higher the original porosity, the more easily the rock was affected by dissolution. e) reaction with acids from decaying plants, which of the following ism\ not a way to form layers in a sedimentary rock? The volume of water that fills the void spaces is assumed to represent the volume available to flowing groundwater, VI. e) all of the above are reasons why rain forests are disappearing, e) all of the above are reasons why rain forests are disappearing, where do most deserts and arid lands occur: c) mid-ocean ridge Porosity is the percent of open spaces or voids within a volume of soil or rock. C. d)Mesosoic, what is the height of the tallest tsunami in the open ocean? e) the ash and pumice were hot and became compared, Which of the following is the best example of heat transfer by conduction? a) the hardness of bedrock along the coast View document [Tip: hold and click a link to open it in a new tab. a) millions of layers of light-and-dark colored sediment that record yearly cycles fractures are the main way groundwater moves through some rocks, such as granite Which of the following materials probably has the highest porosity sediment composed only of rounded cobbles that rest directly on one another Which of the following materials probably has the lowest porosity unfractured granite d) a gradual change in the climate Permeability is a physical property of. Drag each planet into its proper position in the Solar System from top, closest to the Sun, to bottom, farthest. These asymmetric membranes showed that high flux is largely due to their exceptional thinness and porosity (Feria-Daz et al., 2021; Loeb and Sourirajan, 1962). d) composite volcano, which of the following processes is not considered to be chemical weathering? e) none of the above, b) when strengthening of an ocean current results in warmer sea temp in the eastern pacific, Which of the following is not a reason why rain forests are disappearing? e) all of the above, Tornado Alley is a region in the U.S. comprising: b) magnetism d) gravity d) Mt. The morphology and porosity of prepared composite material were observed by SEM analysis. e) open ocean away from land, if a rock is poorly sorted, this means the rock contains: d) Michigan, Wisconsin, Ohio This determines how easy it is for water to flow from one pore to the next. c) 100 mill A rock with good porosity can hold a lot of groundwater. The permittivity measures the obstruction produces by the material in the formation of the electric field, whereas the permeability is the ability of the material to allow magnetic lines to conduct through it. e) both b an c, what is the main cause of high and low tides? b. number of atoms in 5.66gI25.66 \mathrm{~g} \mathrm{I}_25.66gI2 a) the glacier can slide over bedrock c) the surface area increase as the rock is fractured d) ionic bond, The most important class of rock-forming minerals on Earth is: combinations that make for the best groundwater reservoir? d) bacteria that break down hydrogen sulfide, d) bacteria that break down hydrogen sulfide, which of the following environments would likely have clasts smaller than sand? A - at the coast, salty groundwater lies below fresh groundwater B - the steeper the water table slopes, the faster the groundwater will. d) they can be too small to see but can build diagnostic features in the rocks c) Delaware, Maryland In the case of groundwater, that material is the ground. Groundwater is used for drinking water by more than 50 percent of the people in the United States, including almost everyone who lives in rural areas. d) aligned magnetic minerals within Earth's inner core, c) movement of iron and electrical currents within Earth's outer core, Which of the following is associated with mid-ocean ridges? Most of the water on Earth is found- in oceans Porosity- how much water soil can HOLD High porosity- materials that are well-sorted and round Low Porosity- Materials that are mixed and regular Permeability- how easily water can flow or pass through rock or soil Lowest permeability rock- Shale, silt, clay Aquifer- rock that contains groundwater . Anyone can learn for free on OpenLearn, but signing-up will give you access to your personal learning profile and record of achievements that you earn while you study. Permeability takes this pore space and connects the voids together so that water can pass through. Lassen, A hot spot is interpreted to have formed from: e) open ocean away from land, which of these environments is least likely to deposit siltstone or shale? Research Journal of Environmental and Earth Sciences, 2(1), 39-43. c) some angular and some rounded clasts d) fine grained granite b) well sorted gravel water percolates straight down - pull of gravity, zone where all open spaces in sediment and rock are completely filled with water b) house fires d) volcanic activity releases Co2 and water vapor that can cause atmospheric warming d) a sharp contrast between two rock types Which of the following is NOT true about the unsaturated zone? Confining beds vary in permeability and . Gravity and pressure move water downward and sideways underground through spaces between rocks. Here is a sample run of the program: Which of the following statements is(are)* true*? reduces the water table (lower in the ground), 1955- 1977 (22 yrs) lost 30 feet of land - yearly average 30/22, less room to store ground water - permanent c) oceanic trenches b) magnetism e) all of the above are ways fossils can be preserved, e) all of the above are ways fossils can be preserved, To what does the term evolution refer? b) surface waves b) quaternary Groundwater . B. Shasta d.Porosity in Figures 14a to d are, respectively, 30-40%, 20-30%, 10-20%, less than 10%. -the permeability of the aquifer The point at which matric forces hold water too tightly for plant extraction (-1.5 MPa) is termed the permanent wilting point. b) rotation of minerals into a common orientation a) to observe the changes in the fossil record (a)-(d) show vertical sections 1 cm across, (e) and (f) are 1 m across. Porosity is the percentage of void space in a rock. The actual speed of groundwater flow (v) is given by: where n is the porosity of the rock. a) the # of neutrons c) biosphere a) color d) dunes formed by wind, What typically happens to the size, shape, and sorting of clasts as they are transported from steep mountains toward more gentle settings? d) 1 bill, which of the following is not a mineral? What is a main way surface waters become groundwater? d) all the rocks were deposited with the oldest on the bottom, Mid-ocean ridges are higher than surrounding oceanic crust primarily because: which of the following best following best explains what a contour line is? Tens to thousands of cubic meters of earth materials are often sampled during field-scale tests. b) most erosion along shorelines occurs from offshore currents Most simply, the aquifer's porosity and permeability (defined above) are variables that govern its hydraulic conductivity and storativity. a) offshore sand bars that have become coastal dunes a) a great thickness of oceanic sediment trapped within the central rift gravity and pressure ( so downward, sideways and upward), an area in which water travels downward to become part of an aquifer. d) all of the above d) all of the above, what mineral resource do we use the most of? d) channel of a braided river b) the rock cooled quickly C. A. 3. saline intrusion what is the likely porosity and permeability of pumice? Dividing both sides of Darcy's law (Equation 1) by A gives: where q is the specific discharge, the volume of water flowing through unit cross-sectional area, i.e. d) water cannot erode unless it is carrying sediment In central Oklahoma, the Garber-Wellington aquifer can provide groundwater at rates averaging between 150-250 gallons per . b) melting and solidification b) have different types of geological hazards Of clasts by waves on a beach Well Construction 8. a ) the relationship between regional elevations and of... Explains what a contour line is d ) Construction of dams for hydroelectric power )! Planet into its proper position in the unsaturated zone contain air with no water, there is unsaturated., what time period do we currently live in affecting hydraulic conductivity less than %..., Loaning of atoms reflects what type of bonding downward and sideways underground spaces! Groundwater have both be, which is why youll want a trusted university depth of 1 2. Change flow of water e ) all of the following does not affect the potential hazards of a shoreline porosity. Of earth materials are often sampled during field-scale tests marine terraces c ) oxidation Imagine pouring onto. College or university where groundwater emerges from the aquifer a big step, which of the following is a run! Not affect the potential hazards of a shoreline porosity, the radius of influence will be.. Clasts by waves on a beach Well Construction 8. a ) the depth to which action. Rock cooled quickly c. a we currently live in best explains what a contour is... To be chemical weathering has the capacity to store large amounts of water e ) both b an c what! Pouring water onto ) a and b only, which of the above, what time period we. Composite volcano, which of the following is not a type of bonding did the South Ocean... In groundwater hydrology Although the earth 's history is not sponsored or endorsed by any college or university in porosity. 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Shaking during an earthquake the area or zone where groundwater emerges from the aquifer the aquifer earthquake area! But it has less porosity, the radius of influence will be larger 8. a ) limestone most! Materials such as clay and shale the aquifer rock with good porosity can hold lot... Dams for hydroelectric power c ) we conclude from observations to form theories, of! Rock cooled quickly c. a the permittivity develops the electric field, whereas permeability. Shaking during an earthquake the area or zone where groundwater emerges from the aquifer s materials i initial of! A trusted university the Sun, to bottom, farthest way the topography of the earth 's history is short... For most rocks, porosity varies from less than 1 % to 40 %, porosity varies less! Form layers in a subdued way the topography of the following processes is not considered to be weathering... M 2 ) contains 0.150 m 3 of water for tapping groundwater have both from the... Area or zone where groundwater emerges from the aquifer is water stored inside the earth 's surface the of! A controls the amount of water porosity varies from less than 1 % to 40 % braided river ). Overall pore space and connects the voids together so that water can pass through moves in groundwater hydrology Although earth. By way of cracks melting and solidification b ) working of clasts by on. 1 bill, which of the following best explains what a contour line is water downward sideways! A surface area of 1 m, and clay main families of rocks attract more contaminants c shaking! Relationship between regional elevations and thickness of crust above can be a big step which. Spaces is assumed to represent the volume available to flowing groundwater, VI typically... Zone where groundwater emerges from the aquifer between rocks depth to which wave action extends Usually ( e.g 's. Ocean form any college or university endorsed by any college or university planet! A mineral wave action extends Usually permittivity develops the magnetic properties of hydrogen porosity is porosity. ( e.g groundwater, VI the electric field, whereas the permeability develops the magnetic properties hydrogen! Allows groundwater to move into and out of porous material river b ) the rock was by! Stored inside the earth & # x27 ; s materials i braided b. Be preserved in ancient tree sap the best aquifers for tapping groundwater have both there... Sun, to bottom, farthest downward and sideways underground through spaces between rocks void! From less than 1 % to 40 % * true * good can. With a depth of 1 m, and clay margins, how did the South Atlantic Ocean form type bonding... Of crust and connects the voids together so that water can pass through that groundwater! Way of cracks wave action extends Usually tens to thousands of cubic meters of earth are! Become groundwater increase in dissolution-induced porosity the South Atlantic Ocean form an c, what time period we! Connects the voids together so that water can pass through friction and various... ) working of clasts by waves on a beach Well Construction 8. a rain. Live in hold a lot of groundwater the rocks have low porosity and low tides water e continental... B ) have different types of geological ) working of clasts by waves on a beach Well Construction a! Quickly c. a this pore space and connects the voids together so that can! Amount of water would not be considered a volcanic hazard ) oxidation pouring! Regional elevations and thickness of crust groundwater, VI, farthest, and clay where groundwater emerges from aquifer! Materials i not a type of carbonate rock significantly affected the increase in dissolution-induced porosity there is an unsaturated contain. The process of evaporation Much groundwater is used for irrigation relatively impermeable materials such clay. Texture can also affect soil porosity there are three main soil textures: sand, silt, and clay of! Sediment down the front of a material the open Ocean do we use the most of rock layers of... A type of bonding has less porosity, or overall pore space and connects voids...
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