science
Grade-4-
Easy
Question
Which of the following statement regarding weathering is false?
- Rocks of the same chemical structure weather at different rates.
- Hot and heavy rainfall increase the chances of chemical weathering.
- The presence of soil slows down the weathering of the underlying bedrock.
- If the rock is exposed at the surface for a longer time, the weathering will be more.
Hint:
The presence of soil doesn't slow down the weathering of the underlying rocks is the wrong statement.
The correct answer is: The presence of soil slows down the weathering of the underlying bedrock.
- The presence of soil slows down the weathering of the underlying rocks is the wrong statement.
- Physical weathering involves rock and soil breakdown by direct contact with atmospheric conditions such as heat, water, ice and pressure.
- Soils are also host to a variety of vegetation, bacteria and organisms that produce an acidic environment which also promotes chemical weathering.
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