Ozone is considered an important component in the stratosphere because $......$

Observe the following statements:
Statement-$I$: The carbon-containing components of photochemical smog are acrolein,methanal,and $PAN$.
Statement-$II$: The number of greenhouse gases in the list given below is $5$: $CH_4, CO_2, NO, H_2O_{(l)}, H_2O_{(g)}, O_2, O_3$.
The correct answer is:

How can you apply Green Chemistry for the following?
$(a)$ To reduce photochemical smog.
$(b)$ To avoid the use of chlorinated solvents and chlorinated bleaching agents in dry cleaning.
$(c)$ To reduce the use of synthetic detergents.
$(d)$ To reduce the consumption of petrol and diesel.

Which of the following statements is not true about classical smog?

Given below are two statements :
Statement $I :$ The $pH$ of rain water is normally $\sim 5.6$.
Statement $II :$ If the $pH$ of rain water drops below $5.6,$ it is called acid rain.
In the light of the above statements,choose the correct answer from the options given below:

Match the particulate pollutants given in List-$I$ with their descriptions given in List-$II$.

List-$I$	List-$II$
$(A)$ Smoke	$(1)$ Formed by condensation of vapours during chemical reactions.
$(B)$ Dust	$(2)$ Fine solid particles.
$(C)$ Mist	$(3)$ Produced by particles of spray liquids and by condensation of vapours.
$(D)$ Fumes	$(4)$ Mixture of solid and liquid particles formed by combustion of organic matter.