The meander loop cuts off from the river and forms

The highest waterfall in the world is

…………. is the largest delta in the world.

Slow moving of mass of ice is called as

The gentle turns of the river are called as

The unstable hills of sand are called

The hard top of the earth is

A head land cutting out into the sea is

A wide mouthed recess in the line of the coast is

………… are suitable for construction of dams.