Question

Which is correct about chemical weathering and physical weathering

A) Chemical weathering does not change the rock itself weather physical weathering will change the rock
B) Both chemical and physical weathering are processes that break down the rock
C) Chemical and physical weathering are both examples of reactions that make new materials
D) Chemical weathering is a type of erosion where physical weathering is not

Answer 1

The correct statement about chemical weathering and physical weathering is:

**B) Both chemical and physical weathering are processes that break down the rock.**

Explanation:
- **A)** is incorrect because chemical weathering does change the rock by altering its chemical composition, whereas physical weathering primarily breaks down rocks into smaller pieces without changing their chemical composition.
- **C)** is partially correct but misleading, as physical weathering does not typically involve the formation of new materials, while chemical weathering results in new minerals or alterations to the existing minerals.
- **D)** is incorrect because both chemical and physical weathering are processes that contribute to the breakdown of rocks, while erosion refers to the removal and transport of weathered material.

So, option B is the most accurate.