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Free download in PDF Ozone Depletion Objective Type 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.
(21)
Which of the following devices can be used to measure ozone in the stratosphere from the ground?
[A]
Spectrophotometer
[B]
Spectrometer
[C]
Photometer
[D]
Spectro-ozonometer
Answer: Spectrophotometer
(22)
Who discovered the formation of ozone from photochemical reactions?
[A]
Sydney Chapman
[B]
Carl Sagan
[C]
G.M.B Dobson
[D]
None of these
(23)
In which season is the ozone found at its maximum level in the northern hemisphere?
[A]
Spring
[B]
Winter
[C]
Autumn
[D]
Summer
(24)
Which of the following chemicals are responsible for the depletion of the stratospheric ozone layer?
[A]
Foam-blowing agents
[B]
Refrigerants
[C]
Propellants
[D]
All of the mentioned
Answer: All of the mentioned
(25)
What does EESC stand for in context of ozone depleting compounds?
[A]
Equivalent Effective Stratospheric Chlorine
[B]
Energy Effective Stratospheric Compounds
[C]
Equivalent Effective Stratospheric Chlorofluorocarbons
[D]
Equivalent Energy Saving Compounds
Answer: Equivalent Effective Stratospheric Chlorine
(26)
Which of the following is threat to the ozonosphere?
[A]
CFCs
[B]
Carbon dioxide
[C]
Nitrogen dioxide
[D]
Oxygen
(27)
Which one of the following is a result of ozone layer depletion?
[A]
Increases in the carbon dioxide level
[B]
Increase in the oxygen level
[C]
Increase in the nitrogen level
[D]
Increase in the phosphorous level
Answer: Increases in the carbon dioxide level
(28)
In which layer of atmosphere ozone is very vital for all vegetation?
[A]
Below ground level
[B]
Below atmosphere
[C]
Ground level
[D]
Upper atmosphere
(29)
Which atom released when CFCs molecules are broken from UV radiations?
[A]
Chlorine
[B]
Arsenic
[C]
Oxygen
[D]
Nitrogen
(30)
Which treaty was signed in 187 for the protection of ozone layer?
[A]
Wildlife Conservation Act
[B]
The Kyoto Protocol
[C]
The Montreal Protocol
[D]
Ozone Summit
Answer: The Montreal Protocol
31
Which compound which used in fire extinguishers cause ozone layer depletion?
[A]
Halons
[B]
Phosphates
[C]
Sodium aluminates
[D]
Sulfurous silicate
32
The Ozone hole is a much larger springtime decrease in ___ ozone around Erath’s polar regions.
[A]
stratospheric
[B]
mesospheric
[C]
exospheric
[D]
thermospheric
33
Following are referred to as ozone-depleting substances (ODs).
[A]
Halons
[B]
Cfcs
[C]
Hcfcs
[D]
All Of The Above
34
The ozone layer prevents ___ from passing through the Earth’s atmosphere.
[A]
x-rays
[B]
Infrared rays
[C]
Ultraviolet rays
[D]
All Of The Above
35
Utraviolet Rays Cause
[A]
Cataracts
[B]
Skin Cancer
[C]
Sunburn
[D]
All Of The Above
36
Ozone Can Be Destroyed By The Following Free Radical(S)
[A]
Chlorine Radical (Cl∙)
[B]
Hydroxyl Radicals (OH∙)
[C]
Nitric Oxide Radical (NO∙)
[D]
All Of The Above
37
The total amount of ozone in the atmosphere above a point on the earth’s surface is measured in
[A]
Dobson Unit
[B]
Angstrom Unit
[C]
Astronomical Unit
[D]
None Of The Above
38
Following is (are) the greenhouse gas(es).
[A]
chlorofluorocarbons
[B]
carbon dioxide
[C]
both (A) and (B)
[D]
None Of These
39
CFCs were used as
[A]
Refrigerants In Cooling Units
[B]
Paint
[C]
Fuel In Airplanes
[D]
All Of The Above
Answer: Refrigerants In Cooling Units
40
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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