Question

which of the following spheres includes all living organisms and the environments they live in?
biosphere
hydrosphere
geosphere
atmosphere

Explanation:

To solve this, we recall the definitions of Earth's spheres:

• Biosphere: Encompasses all living organisms and the environments (land, water, air) they inhabit.
• Hydrosphere: Includes all water on Earth (liquid, solid, gas).
• Geosphere: Consists of Earth’s solid parts (rock, soil, etc.).
• Atmosphere: Is the layer of gases surrounding Earth.

Only the biosphere includes living organisms and their environments.

Answer:

A. Biosphere