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Free download in PDF Ozone Depletion Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
Which of the following is not the consequence of ozone layer depletion?
[A]
Increased ultraviolet rays
[B]
Malignant melanoma-Another form of skin cancer
[C]
Tides
[D]
Cyanobacteria are sensitive to UV radiation and would be affected by its increase
(2)
In which sphere Ozone layer depletion is found?
[A]
Lithosphere
[B]
Stratosphere
[C]
Ionosphere
[D]
None of these
(3)
Which of the following is a prime health risks associated with greater UV radiation through the atmosphere due to depletion of ozone layer?
[A]
Increased skin cancer
[B]
Neurological disorder
[C]
Damage to digestive system
[D]
Increased liver cancer
Answer: Increased skin cancer
(4)
What is the average concentration of ozone in the ozone layer of the atmosphere?
[A]
Less than 10ppm
[B]
Between 10-50%
[C]
Nearly 100%
[D]
Greater than 90%
(5)
Who discovered the ozone layer?
[A]
Carl Sagan &G.M.B Dobson
[B]
Carl Sagan & Charles Fabry
[C]
Henri Buisson & Charles Fabry
[D]
G.M.B Dobson
Answer: Henri Buisson & Charles Fabry
(6)
The ozone layer absorbs what range of wavelengths of the sun’s radiation?
[A]
200 nm – 315 nm
[B]
600 nm – 750 nm
[C]
450 nm – 570 nm
[D]
0.80 nm – 1.50 nm
(7)
The ozone hole is a phenomenon that has occurred in:
[A]
Southern temperate region
[B]
Arctic region
[C]
Northern temperate region
[D]
None of the mentioned
Answer: None of the mentioned
(8)
The Montreal Protocol bans the production of which of the following chemical substances?
[A]
CFCs, bromine, halons, freons
[B]
Carbon tetrachloride, halons, trichloroethane, CFCs
[C]
CFCs, halons, freons
[D]
Chlorine, bromine, CFCs, freons
Answer: Carbon tetrachloride, halons, trichloroethane, CFCs
(9)
Which of the following action takes place in the formation of ozone?
[A]
Action of daylight on phosphorous
[B]
Action of daylight on nitrogen
[C]
Action of daylight on hydrogen
[D]
Action of daylight on oxygen
Answer: Action of daylight on oxygen
(10)
Why ozone within the upper environment is important?
[A]
It protects the earth from the sun’s harmful ultraviolet radiations
[B]
Because it provides rain to the earth
[C]
It provides good aesthetic view to the atmosphere
[D]
It protects the earth from floods
Answer: It protects the earth from the sun’s harmful ultraviolet radiations
(11)
What is the full form of CFCs?
[A]
Chlorofluridcarbons
[B]
Chlorine fluorocarbons
[C]
Chromate fluorocarbons
[D]
Chlorofluorocarbons
Answer: Chlorofluorocarbons
(12)
Which is the first place where scientist found the thinning of ozone layer?
[A]
Atmosphere above Antarctica
[B]
Atmosphere above Australia
[C]
Atmosphere above India
[D]
Atmosphere above France
Answer: Atmosphere above Antarctica
(13)
Which one of the following cause ozone layer depletion?
[A]
Methyl chloroform
[B]
Oxygen
[C]
Mercury
[D]
Sodium silicate
Answer: Methyl chloroform
(14)
The main cause of ozone depletion and the ozone hole is
[A]
Foam-Blowing Agents
[B]
Halocarbon Refrigerants
[C]
Propellants
[D]
All Of The Above
(15)
Following bans the production of ozone-depleting chemicals.
[A]
Kyoto Protocol
[B]
Geneva Protocol
[C]
Montreal Protocol
[D]
None of the above
Answer: Montreal Protocol
(16)
Following form(s) of oxygen is (are) involved in the ozone-oxygen cycle.
[A]
Triatomic Oxygen (O3)
[B]
Atomic Oxygen (O)
[C]
Diatomic Oxygen (O2)
[D]
All Of The Above
(17)
The process by which the clouds remove NO2 from the stratosphere by converting it to nitric acid in the PSC particles, which then are lost by sedimentation is called
[A]
Denitriding
[B]
Nitrification
[C]
Nitriding
[D]
Denitrification
(18)
Ozone depletion would magnify production of
[A]
Vitamin D
[B]
Vitamin C
[C]
Vitamin A
[D]
None Of These
(19)
Montreal Protocol was signed in
[A]
1987
[B]
1986
[C]
1988
[D]
1989
(20)
Following is used as refrigerant in automobile
[A]
R-134c
[B]
R-134b
[C]
R-134a
[D]
All of the above
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