Question

30. The red soil is red in colour because of
O Diffusion of iron and salt
Diffusion of iron and hydrogen
Diffusion of Iron
O
Diffusion of iron and oxygen​

Answer 1

Explanation:

Their colour is mainly due to ferric oxides occurring as thin coatings on the soil particles while the iron oxide occurs as haematite or as hydrous ferric oxide, the color is red and when it occurs in the hydrate form as limonite the soil gets a yellow colour.

Answer 2

Answer:

due to the diffusion of iron in crystalline and metamorphic rocks.