Question

oxidation- rocks that contain iron react with oxygen and form rust
destructive (chemical weathering)
destructive (mechanical weathering)
constructive

Explanation:

The description is about oxidation of rocks with iron forming rust, which is a chemical change (chemical weathering) and weathering is a destructive process (breaks down rocks). So the correct match is destructive (chemical weathering) as oxidation is a chemical reaction causing rock breakdown.

Answer:

destructive (chemical weathering)