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Doctors Medicines MCQs Q&A

  1. Frost Action
  2. Hydraulic Action
  3. Oxidation
  4. Thermal Expansion
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1 Answers

Answer: Option 3

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.

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