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Environmental I...

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  • Question 1
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    In an agriculture field there is a prevalence of the following organism and crop disease which are affection the crop yield badly ________________.

  • Question 2
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    Ozone hole over Antarctica appear during

  • Question 3
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    In countries near to polar region, the roads are sprinkled with $$CaCl_{2}$$. This is

  • Question 4
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    The e-wastes:

  • Question 5
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    Snow blindness is caused by ____________.

  • Question 6
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    Which of the processes is used to dispose the radioactive wastes?

  • Question 7
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    Chlorine atoms in the upper atmosphere cause the breakdown of ozone.
    $$Cl+O_3\rightarrow O_2+ClO$$
    $$ClO+O\rightarrow Cl+O_2$$
    Which statements about these chlorine atoms are correct?
    $$1$$. The chlorine atoms act as catalysts.
    $$2$$. The chlorine atoms are free radicals.
    $$3$$. The chlorine atoms are formed by heterolytic fission of a covalent bond in chlorofluorocarbons.

  • Question 8
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    Which one of the following options correctly designate the percent contribution of gases (A, B, C and D) responsible of global warming?


    		ABCD
    $$(1)$$$$CH_4(20\%)$$$$CFCs(14\%)$$$$N_2O(6\%)$$$$CO_2(60\%)$$
    $$(2)$$$$CFCs(20\%)$$$$CO_2(14\%)$$$$N_2O(6\%)$$$$CH_4(60\%)$$
    $$(3)$$$$N_2O(20\%)$$$$CH_4(14\%)$$$$CFCs(6\%)$$$$CO_2(60\%)$$
    $$(4)$$$$CH_4(20\%)$$$$N_2O(14\%)$$$$CFCs(6\%)$$$$CO_2(60\%)$$

  • Question 9
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    Incineration of Municipal waste involves

  • Question 10
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    At which level of radioactivity released by radioactive waste can kill vegetation and cause irreparable injuries to humans and animals? 

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