MCQ
The factor responsible for depletion of ozone layer is :
- AExcessive use of automobiles.
- BExcessive industrial units.
- ✓Excessive use of man made compounds containing chlorine and fluorine.
- DExcessive deforestation.
✓
Answer
Correct option: C.
Excessive use of man made compounds containing chlorine and fluorine.
Chlorofluorocarbon compounds are released from automobiles, refrigerators, etc.
These compounds cause an increase in atmospheric temperature causing global warming.
These compounds cause an increase in atmospheric temperature causing global warming.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Magnetic and spin quantum number of an electron are $-1$ and $+1/2$ respectively. This electron cannot be in
→What is a homologation reaction?
Identify the product of the above rearrangement reaction.
Decreasing order of rate of reaction of molecules towards electrophillc addition reaction is
Which one is the wrong statement?
In the reaction $P + NaOH \to P{H_3} + Na{H_2}P{O_2}$
→The $IUPAC$ name(s) of the following compound is(are)
→$[A]$ $4$-methylchlorobenzene $[B]$ $4$-chlorotoluene $[C]$ $1$-chloro-$4$-methylbenzene $[D]$ $1$-methyl-$4$-chlorobenzene
To prevent rancidification of food material, which of the following is added
The maximum number of electrons accommodated in $5f$ orbitals are
→The number and type of bonds in $C_2^{2 - }$ ion in $CaC_2$ are
→