Question

the earths water in all of its forms makes up the ______.
a. atmosphere
b. biosphere
c. hydrosphere
d. lithosphere

Explanation:

To solve this, we analyze each option:

• Option A: Atmosphere is the layer of gases around Earth, not water. Eliminate A.
• Option B: Biosphere includes all living organisms and their environments, not just water. Eliminate B.
• Option C: Hydrosphere is defined as all the water on Earth in all its forms (liquid, solid, gas). This matches the description.
• Option D: Lithosphere is the rigid outer layer of Earth (crust and upper mantle), not water. Eliminate D.

Answer:

C. hydrosphere