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SAI INTERNATIONAL SCHOOL
                                                      Class - VI
                                               Subject - Chemistry
                                              Topic – Air Around Us
                Sub-Topic – Composition Of Air – Water Vapour, Dust, And Smoke



                                                Home Assignment

               Objective Questions

        1.        The amount of water vapour present in the air is called …….                             C

                     a)  Pressure.
                     b)  Work.
                     c)  Humidity.
                     d)  Energy.
        2.        The wind is more humid in                                                               A
                     a)  Summer season.
                     b)  Winter season.
                     c)  Rainy season.
                     d)  Spring season.
        3.        Which one of the following is incorrect?                                                C

                     a)  Air is needed for solar power plant.
                     b)  Air is needed for respiration
                     c)  Air is needed for dispersal of seeds.
                     d)  Air is needed for combustion.

        4.        Which of the following gas helps in the water cycle?                                    U
                     a)  Carbon dioxide
                     b)  Water vapour
                     c)  Oxygen
                     d)  Nitrogen
        5.        Excessive dust and smoke in the air can cause.                                          U
                     a)  Air pollution.
                     b)  Noise pollution.
                     c)  Respiratory diseases.
                     d)  Both a) and c).

               Subjective Questions

         Q. No.                                    Questions                                     Marks  Skill
        Q. 1      Is the amount of water vapour the same everywhere?                                1       R
        Q. 2      DIRECTION: Each of these questions contains an Assertion followed                 1       U
                  by a 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.


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