All organisms of the _______________ build their bodies using the elements present in the earth's crust.

Important fishing centr of the world

The fog created due to smoke is called

____________ is formed by numerous biomes .

____________ includes all the water found on the surface of the earth.

The portion from crust to mantle is generally referred to as

The gaseous mass enveloping the earth is known as the

___________ is a combination of all ecosystems.

Blob was in a _________ form.

Which  term  is often used to refer  the densest parts of the earth?