Question

what is weathering? what is mechanical weathering? what is chemical weathering?

Explanation:

Weathering is the breakdown of rocks, soil, and minerals through direct contact with the Earth's atmosphere. Mechanical weathering is the physical breakdown of rock into smaller pieces by processes like freeze - thaw cycles, abrasion, and root growth. Chemical weathering occurs when chemical reactions change the composition of rocks, such as oxidation, dissolution in water, and carbonation.

Answer:

Weathering: The breakdown of rocks, soil, and minerals by contact with the Earth's atmosphere.
Mechanical Weathering: Physical breakdown of rock into smaller pieces by processes like freeze - thaw, abrasion, root growth.
Chemical Weathering: Chemical reactions changing rock composition like oxidation, dissolution, carbonation.