A difference between physical and chemical weathering is that

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A difference between physical and chemical weathering is that

  1. there is a change in the mineral composition of rock in physical weathering
  2. the mineral composition of rock is changed in chemical weathering ✓
  3. carbonation is necessary in physical weathering
  4. wind is necessary in chemical weathering

Explanation

Chemical weathering changes what rocks are made of. Minerals react with water, oxygen, or acids and transform into new substances.

Physical weathering only breaks rocks into smaller pieces. The minerals stay the same, just in smaller fragments.

Think of chemical weathering as changing the recipe, while physical weathering just chops the ingredients smaller.

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