UPSC General Studies Solved Paper - General Studies-2015

  • question_answer
    Which one of the following is the best description of the term 'ecosystem'?

    A)  A community of organisms interacting with one another

    B)  That part of the Earth which is inhabited by living organisms

    C)  A community of organisms together with the environment in which they live

    D)  The flora and fauna of a geographical area

    Correct Answer: C

    Solution :

    Exp. [c] Ecosystem is a community of living organisms in conjunction with the non-living components of their environment interacting as a system. Ecosystem varies greatly in size from a small pond to a large forest or a sea. Many ecologists regard the entire biosphere as a global ecosystem, as a composite of all local ecosystems on Earth. It can be divided into two basic categories namely the terrestrial and the aquatic. Forest, grassland and desert are some examples of terrestrial ecosystems; while pond, lake, wetland, river and estuary are some examples of aquatic ecosystem.

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