General Knowledge for School Kids - 13

A fertile land in the midst of a desert is called
Oasis

A large mass of ice floating in the sea is called
Iceberg

Snow storms are also called
Blizzards

A group of islands is called
Archipelago

A triangular shaped alluvial tract formed at the mouth of the river is called
Delta

The vast layer of air which surrounds the earth on which we live is called
Atmosphere

The molten material which exists below the solid rock is called
Magma

The alluvial tract of land between two adjacent rivers is called a
Doab