______________ is the main home of human being.

______ consists of oxygen.

Select the correct order of A, B, C and D in the given image.

Mountains found on the _________surface of earth.

Which of the following sphere contains air?

What is A and B in the given image?

The hydrosphere is the total amount of water on a planet. 
The rigid outer part of the earth consists of the crust and upper mantle.

What is the percentage of water present in the ocean?

Which of the following is present in large amounts in the mist?

Lava from volcano belongs to_________.

When the magma's released, it becomes known as lava.

Geo’ means____________.

______ is the earth’s major source of water.

_____ is the solid state of water.

Solid - ice 
Liquid - Water 
Gas - Vapors

Which form of water is shown in the image given below?

Microorganisms present in the soil are a part of the __________.

Which of the following statement is incorrect?

Majority of earth’s water is present in__________.