(B) Particulate pollutants in the atmosphere are classified based on their size. Particles with a size of $10^{-6} \ m$ (or $1 \ \mu m$) are considere

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(B) Particulate pollutants in the atmosphere are classified based on their size. Particles with a size of $10^{-6} \ m$ (or $1 \ \mu m$) are considered the most harmful as they can easily enter the lungs and cause respiratory diseases. Therefore,the correct option is $B$.

Class 11 Chemistry Environmental Chemistry Environmental Study

Easy

Which of the following particle sizes is associated with lung diseases?

A
$10^{-2} \ m$
B
$10^{-6} \ m$
C
$10^{-4} \ m$
D
$10^{-1} \ m$

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Class 11

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Environmental Chemistry

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Environmental Study

Photochemical smog is related to the pollution of

Easy

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Ultraviolet radiation is absorbed by

Easy

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Explain in short: Pollution of the troposphere caused by hydrocarbons.

Medium

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Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Nitrogen oxides in air $I$. Eutrophication

$B$. Methane in air $II$. $pH$ of rain water becomes $5.6$

$C$. Carbon dioxide $III$. Global warming

$D$. Phosphate fertilisers in water $IV$. Acid rain

Choose the correct answer from the options given below:

List-$I$	List-$II$
$A$. Nitrogen oxides in air	$I$. Eutrophication
$B$. Methane in air	$II$. $pH$ of rain water becomes $5.6$
$C$. Carbon dioxide	$III$. Global warming
$D$. Phosphate fertilisers in water	$IV$. Acid rain