Which of the following statement is correct ?

Options

A. Ozone hole is a hole formed in stratosphere from which ozone oozes out
B. Ozone hole is a hole formed in troposphere from which ozone oozes out
C. Ozone hole is thining of ozone layer of stratosphere at some places
D. Ozone hole means vanishing of ozone layer around the earth completely

Answer

C

Explanation

Ozone hole is thining of ozone layer of stratopher at some place.
Two types of compounds have been found to be the most responsible for depleting the ozone layer.
These are (i) NO (ii) chlorofluoro carbon
`{:(NO+O_(3)rarrNO_(2)+O_(2)),(CF_(2)Cl_(2)overset(hv)rarr.^(•)CF_(2)Cl+Cl^(•)),(Cl^(•)+O_(3)rarrClO^(•)+O_(2)),(ClO^(•)+OrarrCl^(•)+O_(2)):}`
These reactions occur in stratosphere.