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Cards In This Set
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Which of the following is not a green house gas?
a. carbon dioxide b. nitrous oxide c. methane d. nitrogen |
D
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Which of the following air pollutant reduces the oxygen-carrying capacity of a blood to a large extent?
a. carbon dioxide b. nitrogen monoxide c. carbon monoxide d. sulphur dioxide |
C
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The constituent of polluted air which contributes in producing acid rain is:
a. nitrogen b. sulphur dioxide c. oxygen d. argon |
B
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The kyoto protocol is associated with one of the following .this one is
a. reduction in the use of chlorfluorocarbons b. reduction in the emission of greenhouse gases c. reduction in the cutting of forest trees d. reduction in pollution of fresh water sources |
B
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Which of the following will be reduced in air in a city forest where lot of dust and fly ash is emitted by a coal based factory in the vicnity
a. nitrogen b. carbon dioxide c. oxygen d. water vapour |
B
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Which of the following disease cannot be caused by drinking of river water contaminated with untreated sewage
a. cholera b. typhoid c. tuberculosis d. diarrhoea |
C
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Which of the following statement about ozone is correct
a. it is essential for breathing b. it absorbs UV rays c. its proportion in air is about 3% d. it is mainly responsible for global warming |
B
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Drinking water can be made absolutely safe by adding some:
a. aspirin tablets b. iodine tablets c. chlorine tablets d. cholorophyll tablets |
C
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The excessive use of one of the following in agriculture can cause the death of fish in pond by oxygen starvation.this one is
a. fertilisers b. manures c. pesticides d. herbicides |
A
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Which of the following is usually not a water pollutant
a. sewage b. fertilisers c. fly ash d. pesticide |
C
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Which of the following are used in electric water filters to kill all the harmful microrganisms present in tap water and make it absolutely safe for drinking?
a. infrred radiation b. gamma radiation c. visible radiation d. ultrviolet radiation |
D
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Which of the following is not an air pollutant
a. sulphur dioxide b. sewage c. CFC's d. SPM |
B
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Which of the following air pollutant is capable of preventing photosynthesis in plants
a. CFC's b. nitrogen oxide c. dust d. carbon monoxide |
C
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One of the following does not contribute in producing acid rain.the one is
a. nitrogen dioxide b. nitrogen monoxide c. carbon monoxide d. sulphur dioxide |
C
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Which of the following will reach the earth in greater amounts.if the amount of chlorofluorocarbons released into the air increases
a. infrared rays b. X-rays c. gamma rays d. ultraviolet rays |
D
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