Q70
Which of the following is a chemical weathering process ?
A.
Frost Action
B.
Hydraulic Action
C.
Oxidation
AnswerD.
Thermal Expansion
Answer: Option C
Solution
Answer: Option C
Solution:
Oxidation is a chemical weathering process. Oxidation is the reaction of a substance with oxygen. This is the process that causes rust. When iron in rocks reacts with oxygen, it forms iron oxide, which weakens the rock. Carbonation is the mixing of water with carbon dioxide to make carbonic acid.