UPSC General Studies Sample Paper General Studies Sample Paper-5

  • question_answer
    Acid rain is an invisible threat to any ecosystem in the world. Which of the following findings are correct about acid rain?
    1. Sulphuric acid and nitric acid are two main acids that dissolve in the water in the atmosphere and fall to the gound as acid rain.
    2. Industrialisation increased the occurrence of acid rain.
    3. Acid rains are a great threat to Western European countries and much of the acid rain occurs as acidic snowfall.
    4. Acid rain never be a threat to wetlands as it is diluted in the water, but much threat in-land ecosystem.
    Select the correct answer using the codes given below.

    A)  1 and 2           

    B)  Only 2         

    C)  1, 2 and 3        

    D)  All of these

    Correct Answer: C

    Solution :

    [c] Oxides of Sulphur and Nitrogen when stay longer in atmosphere, are oxidised into acids. Sulphuric acid is the predominant acid in the acid rain followed by nitric acid. The problem of acid rain has dramatically increased due to industrialisation. Scandinavian countries, Britain, Germany and Canada etc. are affected most by acid rain. In these region acid rain occur as acidic snowfall and turn into a pollution time bomb in the course of time. It also affects wetlands and kills fish species and makes the lakes etc. turn into fish graveyards.

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