The inorganic part of the earth is called

Increasing population and urbanisation is one of the main reason for _________ pollution.

The fog created due to smoke is called

____________ is formed by numerous biomes .

The phenomenon which maintains a balance in the amount of the atmospheric carbon dioxide is called

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

___________ is a combination of all ecosystems.

The item that is not an effect of tides

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

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