Weathering can be caused by water, air, chemicals, plants and .

it can be caused by plants and animals

1) weathering is the process of something wearing away and breaking into smaller pieces, erosion is where things like water, wind, ice and gravity wear away rocks and soil and moves it from one location to another.

2) chemical weathering is when the rock changes a mineral and mechanical weathering is when it changes physically, like breaking into smaller pieces

4) when sheets of rocks peel away

idk