Term
| The process that occurs when physical forces break into smaller pieces without changing the rock's chemical composition is called..... |
|
Definition
|
|
Term
| What is the weathering process involving the constant freezing and thawing of water? |
|
Definition
|
|
Term
| What are the processes of mechanical weathering? |
|
Definition
| Frost wedging, unloading, biological activity |
|
|
Term
| When water freezes, its volume..... |
|
Definition
| Its volume expands by about 9%, exerting a tremendous outward force. This force is great enough to burst water pipes during the winter. |
|
|
Term
| Which of the following is the result of chemical weathering? |
|
Definition
| A rock that has been changed into one or more new compunds |
|
|
Term
| What kind of weathering would cause the writing on a marble gravestone to become harder and harder to read over time? |
|
Definition
|
|
Term
| A soil's texture is determined by.... |
|
Definition
| You use categories of clay, silt, and in the soil |
|
|
Term
| The main source of organic matter in soil is..... |
|
Definition
|
|
Term
| In figure 5-2, what is the layer labeled Y composed of? |
|
Definition
|
|
Term
| A soil that is characteristic of the humid eastern United States is..... |
|
Definition
|
|
Term
| A soil associated with the hot and wet tropics is.... |
|
Definition
|
|
Term
| Which of the following human activities has caused an increase in soil erosion? |
|
Definition
|
|
Term
| The process responsible for moving material down-slope under the influence of gravity is called.... |
|
Definition
|
|
Term
| What is the force behind mass movements? |
|
Definition
|
|
Term
| What is the slowest type of mass movement? |
|
Definition
|
|
Term
| What is responsible for the formation of exfoliation domes? |
|
Definition
|
|
Term
| The gradual rounding of the corners and edges of angular blocks of rock is called.... |
|
Definition
|
|
Term
| The process called....... involves physical forces that break rock into smaller pieces. |
|
Definition
|
|
Term
| In the process of......, water freezes and expands, enlarging cracks in rocks. |
|
Definition
|
|
Term
| A large pile of debris that forms at the base of a slope is called..... |
|
Definition
|
|
Term
| The most important agent of chemical weathering is..... |
|
Definition
|
|
Term
| The layer of rock and mineral fragments produced by weathering and covering nearly all of Earth's land surface, is called..... |
|
Definition
|
|
Term
| Human activities that remove vegetation have resulted in a(n)..... in soil erosion. |
|
Definition
|
|
Term
| The force that drives mass movements is.... |
|
Definition
|
|
Term
| List three factors that affect the rate of weathering. |
|
Definition
| Mechanical weathering, rock characteristics, and climate |
|
|
Term
| How are soils classified based on texture? |
|
Definition
|
|
Term
| What are the three processes that breaks rocks into smaller pieces during mechanical weathering? |
|
Definition
|
|
Term
| Use Figure 5-1 to determine what a soil is called if it has 20 percent clay, 60 percent silt, and 20 percent sand. |
|
Definition
|
|
Term
| In a well-developed soil profile, which horizon is the uppermost layer? |
|
Definition
|
|
Term
| In figure 5-2, what is the layer labeled X? |
|
Definition
|
|
