1) Pollution is the process of making environment a) dirty b) happy c) clean 2) How can we help the environment? a) by reducing waste b) by reusing waste c) by recycling waste d) all of the above 3) which one of the following is used to see a disease causing germs a) camera b) magnifying glass c) telescope d) microscope 4) Air pollution causes due to a) smoke b) fire crackers c) both a and b 5) Trees release gas a) oxygen b) carbon dioxide c) helium 6) Whenever we hear any loud noise it cause a) irritation b) comfort c) happiness 7) We must keep our surrounding a) neat and clean b) wet c) dirty 8)  Which gas cause air pollution? a) oxygen b) carbon dioxide c) nitrogen

Quiz of Ch -Our Environment

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