When mechanical weathering breaks a large rock into smaller pieces the total of the rock increases

When mechanical weathering breaks a large rock into smaller pieces, the total surface area of the rock increases.

Explanation:

The disintegration of 'rock into smaller pieces' is known as mechanical weathering. It increases the rate of chemical weathering. This is caused by pressure release, plant growth, ice wedging. This makes the rock to split apart as a result of the 'cracks and pores' in the rocks. Plant acids too help to dissolve the rocks.

Iam pretty sure it is c. 2000 bce

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