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Cards In This Set
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Name the gas present in atmosphere which is mainly responsible for causing global warming
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Carbon dioxide
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Name two gases present in the polluted air which can cause acid rain
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Sulphur dioxide,nitrogen oxide
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Name all the major pollutants of air
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Sulphur dioxide,
nitrogen oxide, carbon monoxide, excess of carbon dioxide, chlorofluorocarbons and suspended particulate matter |
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Which air pollutant combines with the haemoglobin of our blood
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Carbon monoxide
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Name the various air pollutants discharged by motor vehicle exhausts
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Carbon dioxide,carbon monoxide, sulphur dioxide , nitrogen oxides and smoke
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Which gas in the upper atmosphere prevents ultraviolet radiations of the sun from reaching the earth
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Ozone
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Name any two diseases caused by drinking polluted water containing sewage
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Cholera , typhoid
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Name any four toxic metals whose compounds are present in industrial waste
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Mercury , lead , arsenic and cadmium
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Name any two types of chemials used in agriculture which causes water pollution
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Nitrates and phosphates
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The use of excessive fertilisers in the fields lead to the deficiency of an important substance in the water of a nearby lake.nam the substance
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Dissolved oxygen
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A substance that causes pollution is called
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Pollutant
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What is air
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It is mixture of gases
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Nitrogen makes---percent of air
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78
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Oxygen makes up about --percent of air
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21
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What is pollution
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The presence of high concentration of harmful or poisonous substance in the environment is called pollution
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