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12 Cards in this Set
- Front
- Back
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Which of the following is a process of weathering? Choose all that apply. wind heat and cold actions of organisms wet and dry freeze and thaw |
heat and cold actions of organisms wet and dry freeze and thaw |
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Which of the following are types of mechanical weathering? Choose all that apply. root wedging oxidation frost wedging carbonic acid dissolution sheeting |
root wedging frost wedging sheeting |
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Which one of the following statements concerning mechanical weathering is NOT true? It allows for faster rates of chemical weathering. It is important in the formation of talus slopes. It involves a major change in the mineral composition of the weathered material. It reduces grain sizes of rock particles. |
It involves a major change in the mineral composition of the weathered material. |
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Assume that water filling a crack in a rock undergoes cycles of freezing and melting. Which of the following statement is TRUE? Water expands as it freezes, causing the crack walls to be pushed apart. Water expands as it melts, causing the crack walls to be pushed apart. Water shrinks as it freezes, causing the crack walls to be drawn closer together. Water shrinks as it melts, causing the crack walls to be pulled closer together. |
Water expands as it freezes, causing the crack walls to be pushed apart. |
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Like most other liquids, water decreases in volume when it freezes. True False |
False |
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Clay minerals formed from gabbro or diorite bedrock illustrate which kind of weathering? proactive mechanical chemical syntropical |
chemical |
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Quartz is quite resistant to weathering and is an important component of sands in riverbeds and on beaches. True False |
true |
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Abundant moisture and warm temperatures result in high rates of chemical weathering. True False |
true |
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In what region would climate be expected to have the greatest influence on the rate of weathering? the North Dakota Badlands the Canadian Yukon Territory the Mojave Desert the Hawaiian Islands Antarctica |
the Hawaiian Islands |
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Where do transported soils form? Transported soils must be transported before deposition. Transported soils form over unconsolidated sediment. Transported soils form over carbonate-rich bedrock. Transported soils form over silicate-rich bedrock. |
Transported soils form over unconsolidated sediment. |
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Which term describes a soil formed by weathering of the underlying bedrock? residual transformational relict transported |
residual |
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From the land surface downward to the unweathered bedrock, which of the following is the correct order of the different soil horizons? D, E, C, B, A, bedrock A, B, C, D, E, bedrock O, A, E, B, C, bedrock E, A, B, C, O, bedrock |
O, A, E, B, C, bedrock |
