Question

How does Physical Weathering change the chemical composition of a rock material? It creates new, different minerals from the old minerals It doesn't change the chemical composition of a rock material It dissolves soluble minerals, moving ions into solutions It relies on chemical reactions to break down the minerals

Answer 1

Solution:

Physical weathering is a change that affects the structure of a rock but not its composition. It only causes mechanical changes to the rock's structure because of abrasion and thermal expansion etc.

So physical weathering does not changes the chemical composition of rocks.

So option (B) is correct.