Ecosystem is significant in

Options :
  1. recycling of matter
  2. energy flow
  3. both 1 and 2
  4. none of the above
Answer and Explanation :-

Answer: Option 3

Explanation:

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...at some point you need to stop looking out at others and start looking inward, at yourself, at your own accomplishments, at your own foibles, at your own successes and your own failures. It's only when you begin to look inward that you can begin to have an effect on those out there, the ones with the greedy eyes and outstretched hands.
-Scott F. Falkner