18) Which plants produce more amount of oxygen? (a) Carota (b) Ficus (c) Pinus (d) All of these
19) By the end of 2060 the approximate population of India will be- (a) 110 crore (b) 120 crore (c) 170 crore (d) 190 crore
20) Noise pollution can be checked by- (a) dumping of wastes (b) creating of silence zones (c) judicious use of fertilisers (d) None of these
21) Environmental pollution can be checked by- (a) forestation (b) recycling of wastes (c) dumping of wastes (d) All of these
22) Which of the following is not a prohibited drug? a) Heroin b) Nicotine c) LSD d) Crocin
23) Full form of UNO- a) United Nations Order b)United Nations Organisation c) Union National organisation d) Union Nations organ
24) Which of the following is not one of the measures to control pollution? a) Forestation should be encouraged b) Proper storage of food grains c) Creation of silent zones d) Dumping of wastes near your hous
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Explanation:
18.Ficus
23.C ok I know these answer
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