1) Factories should be located away from residential areas a) False b) True 2) Spilling of oil or petroleum into seas a) harms water animals b) harms land animals 3) waste should be treated before dumped into water bodies a) True b) false 4) pollution means spoiling of a) land,air and water b) only land 5) water pollution is caused by a) domestic sewage b) burning fossil fuel 6) Fertillizers, pesticides and industrial waste pollutes a) Water body b) Air 7) Air pollution is mainly caused by  a) burnig fossil fuels  b) using gadgets 8) Large scale cutting down of trees a) decreases the percentage of carbon dioxide b) increases  the percentage of carbon dioxide 9) Which of the following helps to reduce pollution? a) Cutting trees b) Throwing waste c) Planting trees 10) Why do fish die in polluted water? a) Water becomes cold b) Water has less oxygen c) Water becomes sweet 11) An increase in the average temperature of the earth is called a) Green house effect b) Global warming c) climate change 12) Breathing polluted air affects our a) Lungs b) Kidneys 13) What will happen if land pollution increases? a) Plants grow faster b) Soil becomes unhealthy c) Water becomes sweeter 14) Smoke from vehicles can be reduced by  a) Minimising the usage of vehicles  b) using e bikes c) both 15) Which of these is not visible, but still harmful?  a) Garbage b) Smoke c) Loud noise 16) A greenhouse gas used by plants during photosynthesis a) Ozone b) Carbon dioxide

Pollution types

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