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UPSC Prelims 2015Question 84Environment

Which one of the following is the best description of the term ‘ecosystem’?

Options

  1. (a)A community of organisms interacting with one another
  2. (b)That part of the Earth which is inhabited by living organisms
  3. (c)A community of organisms together with the environment in which they live
  4. (d)The flora and fauna of a geographical area

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