What is the main source of energy for most ecosystems?

The sun.

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  1. Rocks
  2. The sun ✔
  3. The moon

Why: Plants capture sunlight through photosynthesis, feeding the food chain.

Huh, didn't know that: Plants capture sunlight through photosynthesis, feeding the food chain.

The dad joke
The sun is the original power plant.
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References

Answer: The sun. Plants capture sunlight through photosynthesis, feeding the food chain.

  1. Nature en.wikipedia.org/wiki/Nature
    the sun's energy could be harvested to create conditions which allowed for more complex life forms
    Checked 2026-11-07.

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