Question

Explain the causes of physical and chemical weathering. 3 physical and 2 chemical weathering.

Answer 1

Weathering leads to erosion, where particles of broken rock are carried away and deposited elsewhere. Different forces can cause rocks to become weathered:

• Physical weathering is caused by purely mechanical changes to the rock, while chWhile physical weathering breaks down rocks without altering their composition, chemical weathering alters the chemicals that compose the rocks. Depending on the chemicals involved, the rock might disintegrate entirely, or might simply become softer and more vulnerable to other forms of weathering. Physical and chemical weathering often work hand in hand: chemical weathering weakens the rock and physical weathering breaks it down.emical weathering is caused by chemical reactions.
• While physical weathering breaks down rocks without altering their composition, chemical weathering alters the chemicals that compose the rocks. Depending on the chemicals involved, the rock might disintegrate entirely, or might simply become softer and more vulnerable to other forms of weathering. Physical and chemical weathering often work hand in hand: chemical weathering weakens the rock and physical weathering breaks it down.