Weathering & Erosion

Front

The breakdown of rock is called __________.

Back

weathering

Front

Root action is an example of __________.

Back

physical weathering

Front

Why is frost action an effective form of weathering?

Back

Water expands when it freezes.

Front

The reaction between limestone and acid rain is an example of __________.

Back

chemical weathering

Front

Chemical weathering occurs most rapidly when conditions are __________.

Back

warm and wet

Front

Why is water a major agent of chemical weathering?

Back

dissolves many minerals

Front

Which of the following rock layers is most resistant to weathering? Options: 1, 2, 3, 4

Back

3

Front

If a rock is broken into several pieces, its rate of weathering will __________.

Back

increase

Front

Humus, which is formed by the decay of organic matter, is important in the formation of __________.

Back

soils

Front

Which factors most directly control the development of soils?

Back

bedrock composition and climate conditions