Term
| What is mechanical weathering? |
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Definition
| When physical forces break rock into smaller pieces without changing the rock's mineral composition |
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Term
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Definition
| The mechanical breakup of rock caused by the expansion of freezing water in cracks and cervices. |
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Term
| Which of the following is NOT associated with mechanical weathering? |
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Definition
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Term
| What is chemical weathering? |
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Definition
| The transformation of rock into one or more new compounds |
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Term
| Which of the following is the result of chemical weathering? |
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Definition
| A rock that has been changed into one of more new compounds |
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Term
| The atmospheric gas that forms a mild acid when dissolved in water is ________. |
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Definition
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Term
| What would cause the inscription on a marble gravestone to become harder and harder to read over time? |
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Definition
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Term
| What climate does chemical weather favor the most? |
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Definition
| Climates with high temperatures and abundant moisture |
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Term
| What are the major components of soil? |
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Definition
| mineral matter, organic matter, water, air |
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Term
| A soil's texture is determined by ________. |
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Definition
| Categories of clay, silt, and sand in the soil |
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Term
| The main source of organic matter in soil is ________. |
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Definition
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Term
| Use figure 5-1 to determine what a soil is called if it has 20% clay, 60% silt, and 20% sand. |
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Definition
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Term
| What are the proportions of clay, silt, and sand shown at point B in Figure 5-1? |
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Definition
| 20% clay 40% silt 40% sand |
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Term
| What are the proportions of clay, silt, and sand shown at point A in Figure 5-1? |
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Definition
| 60% clay 20% silt 20% sand |
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Term
| What are the proportions of clay, silt, and sand shown at point C in Figure 5-1? |
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Definition
| 10% clay 20% silt 70% sand |
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Term
| A soil associated with the hot and wet tropics is _________. |
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Definition
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Term
| Pedalfer soils contain high amounts of _______. |
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Definition
| iron oxide and aluminum-rich clays |
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Term
| The process responsible for moving material down-slope under the influence of gravity is called _________. |
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Definition
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Term
| What is the force behind mass movement? |
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Definition
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Term
| A mass movement that involves the sudden movement of a block of material along a flat, inclined surface is called a _______. |
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Definition
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Term
| Which of these factors affects the rate of weathering? |
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Definition
| Climate, chemical composition of the exposed rock, and surface area of the exposed rock |
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Term
| Why can the removal of vegetation trigger mass movement? |
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Definition
| The plant root bind the soil and regolith together |
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Term
| In the process of __________, water freezes and expands, enlarging cracks in rocks. |
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Definition
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Term
| A large pile of debris that forms at the base of a slope is called _______. |
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Definition
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Term
| What is the most important agent of chemical weathering? |
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Definition
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Term
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Definition
| The layer of rock and mineral fragments that nearly everywhere covers the Earth's surface |
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Term
| The force that drives mass movement is _____. |
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Definition
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Term
| What is the content in the soil type Pedocal? |
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Definition
| Abundant calcite or calcium-carbonate |
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Term
| What is the location and content of the soil |
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Definition
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