Which of the following does the biosphere contain?

Biosphere is_________________.

Geosphere is related to __________.

There are _______ spheres of earth.

Which of the following is a biotic factor?

_____ contains all the gases that cover the earth.

Name the sphere that contains all life.

Observe the following image. It belongs to ________.

Carbon dioxide belongs to________.

Which of the following sphere consists of all living things?

______________ 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.