Multiple Choice
As a self-contained planet, Earth is divided into several interacting systems called ________.
A) the atmosphere, hydrosphere, geosphere, and biosphere
B) the aerosphere, aquasphere, terrasphere, and ecosphere
C) the geosphere, atmosphere, cryosphere, and gaiasphere
D) the solid earth, the liquid earth, the gaseous earth and the living planet
Correct Answer:

Verified
Correct Answer:
Verified
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