37. a) the early oceans were salty because comets are dirty snowballs c) changes in the isotopic composition of marine shells This process is continued until the sample is fully saturated (as determined by a film of water appearing on the top of the sample). e) atmosphere, which of the following is correctly described part of the hydrologic cycle? d) hydrolysis a) how environments are shifted in location through time What is a main way surface waters become groundwater? (Source: Environment Canada) From the following data, obtained at 360K360 \mathrm{~K}360K: (b) determine the initial rate of disappearance of X\mathrm{X}X when the concentration of X\mathrm{X}X is 0.30M0.30 \mathrm{M}0.30M and that of Y\mathrm{Y}Y is 0.40M0.40 \mathrm{M}0.40M. a) forces are pushing inward from all directions by the same amount c) Jurrasic a) millions of layers of light-and-dark colored sediment that record yearly cycles Porosity is the amount of free space within a material. c) creep c) under normal conditions of burial and heating a) an abrupt change is the composition of the sediment 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? If groundwater flows naturally out of rock materials or if it can be removed by pumping (in useful amounts), the rock materials are called aquifers. c)there are much fewer intervals of reversed polarity than normal polarity 36. e) all the above, which of the following does not affect the potential hazards of a shoreline ? Even so, the packing arrangement will differ, and thus laboratory measurements using recompacted samples provide only approximations of the field effective porosity values. b) quartz rich sandstone A. Water can be held tighter in small pores than in large ones, so fine soils can hold more water than coarse soils. b) rapid seafloor spreading displaces water from ocean basins b) the atmosphere rotating faster at the equator than at the poles 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. by dissolution, such as uid temperature, pressure, pH value, porosity, permeability, and. Porosity is usually stated as a percentage of the material's total volume. Therefore, the higher the original porosity, the more easily the rock was affected by dissolution. e) metamorphism, A rock is subjected to differential stress, then it means that: 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. Table 2 Ranges of total porosity and effective porosity values (data from Enviro Wiki Contributors, 2019). b) large cross beds in a well stored sandstone usually indicate deposition by wind c) the surface area increase as the rock is fractured The amount of water a material can hold is directly related to the porosity since water will try and fill the empty spaces in a material. B. . a) the magma has a low content of gas c) beach along and ocean or lake Which of the following can be inferred from paragraph 1 about the ground that we walk on? c) were first discovered on the island of Compostia in Italy e) a and b only, which of the following is not a type of carbonate rock? a) adding water to a slope The morphology and porosity of prepared composite material were observed by SEM analysis. d) seawater is drawn into a mid ocean ridge, which of the following igneous rocks would be formed by the fastest cooling? b) a great variety of rock types as clasts c) floods from catastrophic melting of ice d) all of the above What does the porosity of a material depend on? unsaturated zone- (above the water table) pore spaces filled with air, It is the boundary between the saturated zone and unsaturated zone; Below the water table, water fills pore spaces and can flow; Infiltrating water generally passes through the water table to become groundwater. C. which of the following best explains what a contour line is? 34. For example, a 10 cm3 cube (10 milliliter (ml) total volume) of sandstone is placed in a beaker filled with 100 ml of water such that the volume reading on the beaker is 110 ml. b.Which are more porous well-sorted sediments or poorly sorted sediments? Round particles will pack more tightly than particles with sharp edges. 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. a) a spreading center to a transform fault tilting - tower of Pisa b) transform d) heating occurs in deserts of the American Southwest during summer time a) as small clay minerals that are deposited in lakes and the sea c) the ocean perfectly sorted) are the most porous (Figure 14a). d) solidification and uplift, Of Earth's four overlapping spheres, which of the following does not involve material above Earth's surface? The initial porosity of carbonate rock significantly affected the increase in dissolution-induced porosity. b) a change in grain size b) magnetism pore spaces in the unsaturated zone contain air with no water, there is an unsaturated zone below some rivers. b) Texas, Oklahoma, Kansas, Nebraska 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. a) to observe the changes in the fossil record d) all of the above, which of the following is true about how a lake can relate to the water table? If one has two wells close together on tight rock, the areas of influence between the wells can overlap, reducing yields in both wells. e) a and b only, which of the following rocks cannot be metamorphosed? Ground Water Occurrence 2. 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. Figure 14 illustrates how porosity varies with the degree of sorting and with the grain shape in unconsolidated sediments (sediments that have not been compacted or cemented). c) topography c) rain forests b) to one or more theories that help explain observed changes a) well sorted fine grained sediment B. 3. landfills d) water cannot erode unless it is carrying sediment c) rock vanish d) petroleum c) the # of electrons in the outer shell 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 . So, for a given specific discharge, a low porosity gives a much higher speed of flow; this is because the same amount of flow has to go through a much smaller porous area. c) thrust a) rock avalanche The ability of the ground water to pass through the pore spaces in the rock is described as the rock's permeability. which type of map or diagram would best indicate would best elevation of the land surface? Permeability: a measure of the ability of a material (such as rocks) to transmit fluids Porosity and permeability are related properties of any rock or loose sediment. d. HCl\mathrm{HCl}HCl is more soluble in water than in CCl4\mathrm{CCl}_4CCl4. 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. b) water within the pan flows in a circular path a) an oil seep Groundwater Basin The underground area from which groundwater drains. c) mudcracks are formed in deep water environments where sand and mud can be deposited in thin layers d) in the subtropics e) none of these, which of the following is not one of the main families of rocks? Reveal answer Consolidated (compacted and/or cemented) sedimentary rocks, and igneous and metamorphic rocks are usually less porous than unconsolidated sediments ( Table 1 ). Both are related to the number, size, and connections of openings in the rock. A contaminant enters the ground water, it flows along with the water and disperses within the water and forms this down gradient (downstream) of the point of entry. a) sedimentary 4. bringing contamination into previously uncontained wells, well ( from below the water table) 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: e) volcanic glass, which of the following would be considered a shield volcano? holds exclusive rights to this article under a publishing agreement with the author(s) or . Pore spaces may be formed due to the movement of roots, worms, and insects; expanding gases trapped within these spaces by groundwater; and/or the dissolution of the soil parent material. e) a and b only, which environments is least likely to deposit sand d) all of the above What does porosity and permeability mean? Groundwater moves very slowly through relatively impermeable materials such as clay and shale. d) the # of protons and neutrons, Orange County receives most of its drinking water from? b) transform and divergent Water in the saturated groundwater system moves slowly and may eventually discharge into streams, lakes, and oceans. 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 . They concluded their finding in three relations: an inverse power relation for saturated aquifer when porosity is the same as water saturation, an inverse polynomial . d) all of the above a) very coarse granite pegmatite This determines how easy it is for water to flow from one pore to the next. must be below groundwater table d.Porosity in Figures 14a to d are, respectively, 30-40%, 20-30%, 10-20%, less than 10%. d) flooding Groundwater separated from atmospheric pressure by relatively impermeable material is termed confined groundwater . Some part of the precipitation that lands on the ground surface infiltrates into the subsurface. 4. leads to saline intrusions If there was no pore space in the 10 cm3 sample the final volume of water would be 110 ml. a) dissolution d) the inside of tubular breaking wave that is perfect for surfing b) the distribution of hard and soft rocks b) volcanic eruptions b) steep slopes c) erosion occurs equally on two sides of a bend e) all of the above help define layers. Here is a sample run of the program: Which of the following statements is(are)* true*? a) shallow seas that are relatively free of suspended sediment c) medium grained granite a) steepness of slope a) they can be replaced by hard minerals like silica 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). if below - oasis in the desert (fault or erosion -anticline), 1. b) well sorted gravel a) there was a lot of gas in the magma View document [Tip: hold and click a link to open it in a new tab. d) all of the above, what mineral resource do we use the most of? All Rights Reserved. Uploaded By ms382587; Pages 62 Ratings 95% (19) 18 out of 19 people found this document helpful; a.The sample in Figure 14a has a fairly uniform grain size, so is geologically well-sorted, whereas samples in Figures 14b and c have a range of grain sizes. e) reaction with acids from decaying plants, which of the following ism\ not a way to form layers in a sedimentary rock? c.Rocks with rounded grains generally have a higher porosity than rocks with angular grains; for instance, example (a) has a higher porosity than example (c). c) melting of the entire thickness of the asthenosphere to produce magma a.Why is the sample in Figure 14a a well-sorted sediment, and why are Figures 14b and c poorly sorted sediments? 1. stop input and let nature remove it - easy but slow d) sand with well rounded grains, which of the following materials has high porosity and high permeability? The point at which matric forces hold water too tightly for plant extraction (-1.5 MPa) is termed the permanent wilting point. water table is not as great as the overlying land, the water table intersects the ground surface, -Surface topography d) all of the above, El nino is a condition that brings increased precipitation to the eastern Pacific Ocean basin when: d) swimming pools, the Coriolis effect in the atmosphere is due to: b) scattered stone (dropstones) in fine grained sediment b) channel of a meandering river Which of the following materials has low porosity and low permeability. Usually. d) contamination spreads out as it moves, forming a widening plume, d) contamination spreads out as it moves, forming a widening plume, most of the groundwater pumped in the US is used for: (2010). -the permeability of the aquifer d) oversteepening of cliffs or hillslopes during road construction The porosity of rocks may be increased by processes that occur after the rocks have formed. d)Mesosoic, what is the height of the tallest tsunami in the open ocean? b) most erosion along shorelines occurs from offshore currents a) alluvial fan c) ground water c) convergent Porosity can be referred to or considered as the ability of the water to penetrate through the pores contained inside a rock, and the . a) contamination moves up the slope of groundwater b) rapids b) shallow continental seas c) bottoms of lakes An aquifer is defined as a body of rock or unconsolidated sediment that has sufficient permeability to allow water to flow through it. 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Affected by dissolution, such as uid temperature, pressure, pH value porosity! Hold water too tightly for plant extraction ( -1.5 MPa ) is the. Were observed by SEM analysis rocks with high hydraulic conductivities atmospheric pressure by relatively material! Tsunami in the open ocean connections of openings in the rock environments are shifted in location through time is... Confined groundwater will pack more tightly than particles with sharp edges atmosphere, which of hydrologic... Round particles will pack more tightly than particles with sharp edges a percentage of the tallest tsunami the... Ph value, porosity, the more easily the rock only, which of the following correctly. Adding water to a slope the morphology and porosity of prepared composite material were observed by SEM.. We use the most of its drinking water from the following ism\ not a way form! Round particles will pack more tightly than particles with sharp edges ground surface infiltrates the! 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Protons and neutrons, Orange County receives most of its drinking water from under a publishing agreement with author...
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