What is the only source of energy for all ecosystems on Earth except the deep sea hydro:thermal ecosystem?

What is the only source of energy for all ecosystems on Earth except the deep sea hydro:thermal ecosystem?
  1. Sun
  2. Wind
  3. Hydro:thermal activity
  4. Nuclear energy

Solution

Sun is the only source of energy for all ecosystems on Earth except for the deep sea hydro:thermal ecosystem.

Asked in: NCERT

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