Question

which factor contributes to both chemical and mechanical weathering?
abrasion
freezing
oxidation
water

Explanation:

• Abrasion is only mechanical weathering (rubbing and scraping).
• Freezing (ice wedging) is mechanical weathering (water expands when freezing, breaking rocks).
• Oxidation is chemical weathering (reaction with oxygen).
• Water is involved in both: mechanical (e.g., flowing water eroding rocks) and chemical (e.g., water reacting with minerals in rocks).

Answer:

water