Page 2 - 4-Home Assignment-Uses of Air, Air Pollution
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Subjective Questions

           S.N                                     Questions                                       Mark  Skill


          Q.1     Write down one property of air.                                                 1        R
          Q.2     DIRECTION: Each of these questions contains an Assertion followed by            1        U
                  Reason. Read them carefully and answer the question based on the
                  following options. You have to select the one that best describes the two
                  statements.
                  (a) If both Assertion and Reason are correct and Reason is the correct
                  explanation of Assertion.

                  (b) If both Assertion and Reason are correct, but Reason is not the
                  correct explanation of Assertion.
                  (c) If Assertion is correct but Reason is incorrect.
                  (d) If Assertion is incorrect but Reason is correct.

                  (e) If Assertion & Reason both are incorrect

                  Assertion (A) - Air helps to generate electricity.
                  Reason(R) - Air helps for the dispersal of seeds.
          Q3      What are pollutants? Give an example.                                           1        R


          Q.4     Complete the web chart.                                                         3            U+A







                     Nitrogen                                  Carbon dioxide

                                                 Vary from
                                       21%       Place to                         Neon, Argon
                                                 place.




          Q.5                                                                                     5        R
                  Mention five uses of air




















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