Question

Water can cause weathering of rocks through

• A. Chemical weathering
• B. Physical weathering
• C. Biological weathering
• D. Humification

Answer 1

The correct option is B Physical weathering

Physical weathering is the process by which rocks are broken apart by physical (heating, cooling, wetting-drying and frost action) and mechanical (abrasion by rain and hail, wind action) means. This causes unequal expansion and contraction of rocks which ultimately leads to the breakdown of rocks into smaller particles.