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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

Respuesta :

miagwh
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.  

Out of

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

I'd say 3. Oxidation.

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