Which of the following statements is correct?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The correct answer is that the ozone hole is the thinning of the ozone layer in the stratosphere at some places.It is not a literal hole,but a sig

Vedclass · Accepted Answer

Ozone hole is thinning of ozone layer of stratosphere at some places.

Vedclass · Answer

(C) The correct answer is that the ozone hole is the thinning of the ozone layer in the stratosphere at some places.It is not a literal hole,but a significant reduction in the concentration of ozone $(O_3)$ in the stratosphere.The depletion is primarily caused by compounds like $NO_x$ and $CFCs$ (Chlorofluorocarbons).The chemical reactions involved are:$NO_2 + O_3 \rightarrow NO_3 + O_2$$CF_2Cl_2 \rightarrow CF_2Cl + Cl$$\dot{Cl} + O_3 \rightarrow Cl\dot{O} + O_2$$Cl\dot{O} + O \rightarrow \dot{Cl} + O_2$These reactions occur in the stratosphere.

$List-I$ (Pollutant)	$List-II$ (Source)
$A$. Microorganisms	$I$. Strip mining
$B$. Plant nutrients	$II$. Domestic sewage
$C$. Toxic heavy metals	$III$. Chemical fertilizer
$D$. Sediment	$IV$. Chemical factory

Similar Questions

The smog known as London smog is .....

The term 'Biosphere' refers to:

An excess of ......... $ppm$ of $F^-$ ions in drinking water is responsible for a disease known as fluorosis.

How can domestic waste be used as manure?

Vedclass Test Series

Exam Paper Generator

Online Exam Module