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Concept- Wastewater Treatment Plant

               Q1.                                                                                   1
                      What is sludge?


               Q2                                                                                    1
                      What is clarified water?
               Q3     Why chlorine is added to the swimming pools?                                   1

               Q4     What is the function of aeration tank?                                         1

               Q5     Bio gas is produced in the following process                                   1

                          a)  Digestion
                          b)  Circulation
                          c)  Excretion
                          d)  Respiration



               Concept- Alternative method of sewage, Prevent water pollution
               Q1.     What is a chemical toilet?                                                      1


               Q2      Mention a major action plan that has taken by India Government.                 1

               Q3      Which of the following is not cause water pollution?                            1

                              a)  Insecticides
                              b)  Slacked lime
                              c)   Excreta of animals
                              d)  Pesticides


               Q4      What is portable water?                                                         1

               Q5.                                                                                     1
                       The method using red worms to transform waste into manure is
                          a)  Composting
                          b)  Vermicomposting
                          c)  Landfill
                          d)  Septic tank






















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