Which process is defined as breaking down rocks into smaller pieces without changing 1. the rocks' compositions?
2. erosion
3. oxidation
4. chemical weathering
5. mechanical weathering

Mechanical weathering

Explanation:

Mechanical weathering is the process of splitting the larger piece of rock into simpler pieces through the action of physical agents like drilling machines, blasting rocks etc. This process does not alter the rocks' chemical composition.

Thus, the answer is mechanical weathering.

mechanical weathering.

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