Geology test – Flashcards
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This figure shows how sunlight strikes the earth during certain times of the year. It is summer:
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In the Northern Hemisphere
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Where do most deserts and other arid lands occur:
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In the subtropics
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What happens to the surface area of exposed rock if a rock is fractured?
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The surface area increases as the rock is fractured.
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Atmospheric pressure decreases with increasing altitude due to:
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A decrease in the thickness and density of air on top
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The Coriolis Effect in the atmosphere is due to:
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The atmosphere rotating faster at the equator than at the poles
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Atmospheric pressure is generally:
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Both B&C
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What is the relationship between water vapor at point A and water droplets at point B
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Water evaporates at point A, rises, and then cools and condenses at point B
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This diagram suggests that:
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All of these
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Which of the following settings is most likely to have high precipitation?
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A site where two large-scale circulation patterns converge, causing air to rise and cool.
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Most equatorial regions are warmer than the rest of earth because of:
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None of these
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Which of the following materials probably has the lowest permeability?
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Compacted clay with abundant tiny pore spaces
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What is a main way surface waters become groundwater?
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Water flows through the unsaturated zone and into the saturated zone
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This cross section shows the location of a septic tank with harmful bacteria and 5 wells. Which cell is least likely to become contaminated?
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Well E (farthest well to the right of picture)
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This map shows elevations of the water table beneath an area. The water table slopes towards the
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South
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Which way is groundwater flowing in this cone of depression?
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Downward and toward the well from all directions
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What is the main reason why the oceans are salty?
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Weathering of rocks releases chemical elements that make the oceans salty.
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Some rocks and minerals are not stable at the surface because they:
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All of these
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Where does the quartz in granite typically end up?
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It ends up as sand in rivers, dunes, and beaches
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What is the main force involved in the stability of slopes?
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Gravity
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What is the angle of repose?
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The steepest angle at which loose material remains stable
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What type of slope failure is shown in this figure?
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Rotational slide
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The landslide that destroyed La Conchita is probably
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The earth flow
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Which of the following is an expression of the angle of repose?
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All of these
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Where is most of earths freshwater?
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Ice caps, glaciers and groundwater
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Which of the following energy sources drives the hydrologic cycle?
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Solar energy
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Which of the following is a valid statement with relevance to groundwater?
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A and B only
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The carbonic acid in rain water reacts with many silicate minerals to produce:
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Clay minerals such as Kaolinite
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The in-place decomposition and disintegration of rocks and minerals at the earths surface is referred to as:
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Weathering
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Which process listed below is an example of chemical weathering?
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Oxidation
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The competence of a stream is:
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The largest size particle that it can carry.
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Groundwater originates from:
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Rainfall
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Which of the following will not affect groundwater
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Phase of venus
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Permeability of soil or rock refers to the:
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Capacity for transmitting fluids
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Which of the following types of mass wasting movement is the fastest?
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Rockfall
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The term "angle of repose" refers to:
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The angle at which a slope is stable.
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What is the controlling force of mass wasting?
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Gravity
