Study the given diagram and answer the following question.

Which is the most appropriate statement about the figure?

A. London smog is oxidising in nature

B. Photochemical smog causes irritation in eyes

C. London smog is a mixture of smoke and fog

D. Photochemical smog results in the formation of $$PAN$$

A. Plants

B. Haemoglobin

C. Microorganisms present in the soil

D. Oceans

A. methane and nitrous oxide in atmosphere.

B. methane and $$C{O_2}$$  in atmosphere.

C. methane and $${O_3}$$  in atmosphere.

D. methane and $$CO$$  in atmosphere.

A. The problem of ozone depletion is less serious at poles because $$N{O_2}$$  solidifies and is not available for consuming $$CI{O^ \bullet }$$  radicals.

B. The problem of ozone depletion is more serious at poles because ice crystals in the clouds over poles act as catalyst for photochemical reactions involving the decomposition of ozone of $$C{l^ \bullet }$$  and $$CI{O^ \bullet }$$  radicals.

C. Freons, chlorofluorocarbons, are inert. Chemically, they do not react with ozone in stratosphere.

D. Oxides of nitrogen also do not react with ozone in stratosphere.