(i) Hydration (
- Mineral in the rock absorb water during rainy period
-The mineral expands causing stress in the rock
- The rock eventually break into smaller pieces thereby forming soil
(ii) Oxidation
- Oxygen in air / water reacts with iron compounds in the rock
- Oxides are formed
- Brownish / Yellowish crust is formed on the surface of the rock.
-The crust disintergrates grades making the rock to break into smaller pieces forming soil
marto answered the question on November 8, 2019 at 10:35
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