Frost is experienced in

1. Tropical regions
2. Deserts
3. Mountainous regions
4. Doldrums

Wearing away of rock is called

1. Erosion
2. Gradation
3. Disintegration
4. Aggradation

It is a parent rock for other rocks making up to 85% of the earth’s crust.

1. Igneous
2. Sedimentary
3. Metamorphic

Rocks that are very compact and do not wear out easily

1. Igneous
2. Sedimentary
3. Metamorphic