Read the following about pollution and identify the correct matching combinations.

Column I Column II Column III

I. Chernobyl Accidental leakage Radioactive wastes

II. El nino effect Global warming Causing climatic changes

III. Chloroflurocarbons Ozone degradation Fluorine atoms released

IV. Snow blindness UV- B radiation Inflammation of cornea

III, II, I

IV, III, II

I, II, IV

I, III, IV

Solution

I, II, IV

Statement I, II and IV are correct.

Chloroflourocarbon (CFC) causes ozone degradation with release of chlorine atoms. Even 1 one molecule can degrade 10000 molecules of O₃.

Cl + O₃ $\to$ ClO + O₂

ClO + O₃ $\to$ Cl + O₂

CFC molecules move to stratosphere and release chlorine atom, which react again with another ozone molecule creating huge destruction of O₃ layer by a very concentration of CFC.

Some More Questions From Environmental Issues Chapter

For Daily Free Study Material Join wiredfaculty

Environmental Issues

Some More Questions From Environmental Issues Chapter

The meaning of BOD is :

Which of the following pollutants is not produced by exhaust of motor vehicles ?

What is the term for the inflammation of cornea due to high absorption of UV-B radiation :

Smog is a mixture of :

WHO’s recommendations about the industrial noise limit is of :

Which of the atmospheric layer contains ozone layer ?

The amount of dissolved oxygen required by the microorganisms to degrade the organic wastes present in water is called ?

The cause of acid rain is :

Which one of the following causes ozone depletion ?

What disease is caused due to consumption of fishes captured from water contaminated with mercury ?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Phone Number

Email Address

Location

Column I	Column II	Column III
I. Chernobyl	Accidental leakage	Radioactive wastes
II. El nino effect	Global warming	Causing climatic changes
III. Chloroflurocarbons	Ozone degradation	Fluorine atoms released
IV. Snow blindness	UV- B radiation	Inflammation of cornea