Definition of mechanical weathering

MECHANICAL WEATHERING:

Mechanical weathering is defined as a natural process. It occurs when big rocks are broken down into smaller rocks. Sometimes you will hear it referred to as “physical weathering.” There are lots of different things that can cause physical weathering. For example, temperature changes and rain can both cause weathering.

sadness is not good

explanation:

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times