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Please help!!!

Which of the following is an example of chemical weathering?

1. Frost wedging
2. Animal activity
3.Oxidation
4. Abrasion

User Glendy
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2 Answers

7 votes

Out of

  1. Frost wedging
  2. Animal activity
  3. Oxidation; and
  4. Abrasion,

I'd say 3. Oxidation.

User FDIM
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5 votes
The answer is #3: Oxidation because oxidation is when a substance reacts with oxygen, which causes the substance to rust.  When a rock contains iron and that iron comes in contact with oxygen, iron oxide is created; this weakens the rock.  
User Jaybee
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