JPSC Civil Services 2021: Civil Services Main Exam, Advt. No. 01/2021, General Science, Environment & Technology Development

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(14) What is the primary agenda of the Kyoto Protocol ?
        (A)       Control anthropogenic sources of greenhouse gases.

        (8)      Regulate the production of nuclear energy.

        (C)       Regulation of hazardous wastes.

        (D)       None of the above
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(15) Which of the following is a disadvantage of most of the renewable energy sources ?
         (A)      High running cost                     (8)   High waste disposal cost

         (C)      Unreliable supply                    (D)    Highly polluting
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(16) Which of the following salts is the main cause of permanent hardness of water ?

         (A) ,Magnesium bicarbonate                     (8)   Magnesium sulphate

         (C)      Magnesium carbonate                  (D)    None of the above
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2.       What do you mean by unit? Define MKS, CGs and sl system of units. What are the
        characteristics of a Standard Unit ? Write the advantages of the SI system.               32

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        State and explain the laws that explained the relative position of earth with sun. What
        do you understand by an eclipse and how does it take place ? Draw neat and.clean
        diagram of Solar eclipse and explain the five ways to view Solar eclipse safely.

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3.      What are essential amino acids? Why are they necessary for the maintenance of health? 32
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        What are Vitamins ? Describe three dis.eases caused by Vitamin deficiency.
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4.      What are the different methods of rainwater harvesting generally adopted by the
        farmers of Jharkhand State ? How is it beneficial in improving the agriculture
        production ?                                                                              32

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        Give your coricept on waste land. What ineasures you will suggest for its reclamation
        and its potential use in Agroforestry ?
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