Question

All life-forms on earth are located in the ____.

a. Geosphere
b. Biosphere
c. Atmosphere
d. Hydrosphere

Answer 1

The answer is the biosphere! B. Biosphere 

Answer 2

Answer: Biosphere.

Explanation: The biosphere can be defined as the global ecological system that involves the interaction among all the living beings and their components.

The interaction of the living beings with lithosphere, hydrosphere, geosphere and atmosphere can be seen only in the biosphere.

So, we can say that all the living forms of life can be seen in the biosphere.