12th Class Biology Sample Paper Biology - Sample Paper-10

  • question_answer
    Is global warming real, only a theory or speculation?

    Answer:

    Global warming is real and has been with us for some time, increasingly during the past two decades but gradually for more than a hundred years. The reality of it is seen in direct temperature measurements and also in the melting of glaciers in low latitudes, permafrost decay in Alaska and the decrease in sea-ice cover in Arctic.


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