Rock disintegration without any change in the chemical constituents of the rock:

1. Block Disintegration
2. Mechanical Weathering
3. Carbonation
4. Organic Weathering

The sudden contraction and expansion peels off the outer rock layer:

1. Solution
2. Exfoliation
3. Hydration
4. Oxidation

Weathering due to the action of animals, plants and human beings is also known as:

1. Mechanical Weathering
2. Chemical Weathering
3. Organic Weathering
4. Physical Weathering

Expansion of minerals on coming into contact with rainfall:

1. Oxidation
2. Solution
3. Hydration
4. Carbonation