1) which of the following is a living component of the environment a) fishes b) land 2) which of the following is a harmful effect of air pollution a) jaundice b) skin allergies 3) which of the following causes land pollution a) Cutting of trees b) smoke from factories 4) Aries polluted by--------from vehicles a) water b) smoke 5) any sound that causes ________the ears is called noise a) smoke b) uneasiness 6) land is a-------component a) leaving b) non -living 7) _______does not decay easily a) Leaf b) plastic 8) air pollution causes_______problems a) Smoking b) health 9) plants are non living components of the environment a) true b) false 10) breasting of crackers causes air pollution a) false b) true 11) breathing problems is a harmful effect of water pollution a) false b) true 12) water pollution can causes jaundice and diarrhoea a) true b) false 13) air gets polluted by smoke from vehicles a) False b) true 14) what is the full form of PUC a) pollution under control b) police under control 15) candles and lamp are----sources of light a) natural b) artificial

3rd science

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