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SAI INTERNATIONAL SCHOOL
                                                      CLASS-VII
                                            SUBJECT - CHEMISTRY

                                TOPIC- MANAGEMENT OF WASTE WATER
                             SUB TOPIC- SOURCES OF WATER POLLUTION


               OBJECTIVE
               MCQs

                 Sl.                                Questions                                  Mar     Skill
                 No.                                                                           k
                 Q.1  Which of the following waste do not cause water pollution?               1       R
                           a)  Leakage from landfill.
                           b)  Domestic waste
                           c)  Water treatment plant
                           d)  Industrial waste

                 Q.2                                                                           1       u
                       This is not an example water-borne disease?
                           a)  Small pox
                           b)  Typhoid
                           c)  Cholera
                           d)  d) jaundice



                 Q.3  Which one of the following is not a domestic waste?                      1       U
                           a)  Vegetable peels
                           b)  Soap
                           c)  Pesticides
                           d)  d) detergents

                 Q.4  Which one of the following is incorrect statement?                       3       U
                           a)  Leakage from sewer lines can contaminate the
                              underground water.
                           b)   Exposed draining of sewage from hospitals can cause
                              communal health problems.
                           c)  Oil spill a huge concerns large amount of oil enters into the
                              sea and cause problem to aquatic plants and animals.
                           d)  Mining activates do not cause any pollution.




                       SUBJECTIVE

                 Sl                                 Questions                                  Mar     Skill
                 No.                                                                           k
                 Q.1    What is vector?                                                        1       R








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