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A single chloride free radical of CFCs can destroy upto ozone molecules:

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Chlorofluorocarbons and aerosols are inert in sphere:

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Troposphere extends upto km:

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Ozone is stratosphere extends upto km:

NETNUST Entry TestChemistryEnvironmental Chemistry

Term ozone hole is used for depletion of ozone during months of:

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By the mid of 1980s depletion of total overhead ozone in antarctic region is:

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Ozone acts as:

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Ozone is produced in regions:

NETNUST Entry TestChemistryEnvironmental Chemistry

A large hole in the ozone layer over antarctica region was discovered in:

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Ozone layer is high:

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The normal amount of overhead ozone is about in DU:

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Amount of ozone in atmosphere is expressed in units:

NETNUST Entry TestChemistryEnvironmental Chemistry

Ozone gas has boiling point:

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Which oxidizing agent is eye irritant and toxic to plants?

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Condition for formation of smog are:

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The yellow colour in photochemical smog is due to the presence of gas:

NETNUST Entry TestChemistryEnvironmental Chemistry

Photochemical smog consists of higher concentration of:

NETNUST Entry TestChemistryEnvironmental Chemistry

Reducing smog contains:

NETNUST Entry TestChemistryEnvironmental Chemistry

The word smog is combination of smoke anf

NETNUST Entry TestChemistryEnvironmental Chemistry

The elevated concentration of metal causes clogs of gills in fish:

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Acidification of soil can leach metals:

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$SO_{2}$ in atmosphere changes to:

NETNUST Entry TestChemistryEnvironmental Chemistry

$NO_{2}$ is atmosphere changes to:

NETNUST Entry TestChemistryEnvironmental Chemistry

$CO_{2}$ in atmosphere changes to:

NETNUST Entry TestChemistryEnvironmental Chemistry

Phenomenon of acid rains gain importance in:

NETNUST Entry TestChemistryEnvironmental Chemistry