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JEE Main
IMPORTANT
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The correct statement among the following is

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Important Questions on Environmental Chemistry

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JEE Main
IMPORTANT
The ozone layer of the stratosphere requires protection from indiscriminate use of:
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JEE Main
IMPORTANT
Ozone is an important constituent of the stratosphere because:
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JEE Main
IMPORTANT
Which among the following statements is false?
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JEE Main
IMPORTANT
Presence of which fuel gas in exhaust fumes shows incomplete combustion of fuel?
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JEE Main
IMPORTANT
The formation of ozone in the upper atmosphere from oxygen takes place by the action of:
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JEE Main
IMPORTANT
The chemical entities present in thermosphere of the atmosphere are:
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JEE Main
IMPORTANT
Which of the following statements is not true about classical smog?
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JEE Main
IMPORTANT
Biochemical Oxygen Demand (BOD) is a measure of organic material present in water. BOD value less than 5 ppm indicates the water sample to be: