Rocks are broken by six agencies under ______________.

Therer are __________ categories of landforms found on the Earth.

_________ is a mixture of various materials.

The deformation of Earth's without involving folding is termed as ____________.

There are _______ types of rocks.

There are__________ types of weathering. 

There are _________ types of endogenic forces.

There are _______ types of exogenic forces.

There are __________ agencies of chemical weathering.

Mountains,plateaus and volcanoes are produced by __________.