The cycling of matter through all of the organisms, populations, and ecosystems of earth is ultimately powered by what form of energy?

A. Nuclear
B. Light
C. Chemical
D. Kinetic

B. Light

Explanation:

The cycling of matter through all of the organisms, populations and ecosystems of the earth is ultimately powered by the light energy from the sun.

All organisms uses the light energy from the sun to derive other forms of energy for their own use.

Light energy is taken into the ecosystem by plants by the process of photosynthesis. During this process, light energy is converted to chemical energy which is stored in organic molecules. This chemical energy is therefore transformed into other forms of energy available in the ecosystem.

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