Environment and Ecology | Ozone Layer
Environment and Ecology | Ozone Layer
1. Ozone layer is above the earth crust around
50 km
300 km
2000 km
20 km
Correct Answer
Wrong Answer
2. Which is the lowest layer of the atmosphere?
Stratosphere
Ozonosphere
Ionosphere
Troposphere
Correct Answer
Wrong Answer
3. Place where ozone layer is primly found is
Troposphere
Stratosphere
Mesosphere
Ionosphere
Correct Answer
Wrong Answer
4. The radiation that is absorbed by ozone present in the atmosphere is
Infrared
Visible
Ultraviolet
Microwave
Correct Answer
Wrong Answer
5. Ozone protects biosphere from
Infrared rays
Ultraviolet rays
X-rays
Gama rays
Correct Answer
Wrong Answer
6. Ozone layer in atmosphere
Produces rain
Produces pollution
Provides safety to life on earth, from ultraviolet radiation
Produces oxygen in the atmosphere
Correct Answer
Wrong Answer
7. Why is ozone layer useful to humanity?
It supplies oxygen to the atmosphere
It prevents the Sun's ultraviolet rays from reaching the Earth
It controls the temperature of the Earth
None of the above
Correct Answer
Wrong Answer
8. Harmful ultraviolet radiation coming from the sun can cause
Liver cancer
Brain cancer
Oral cancer
Dermal cancer
Correct Answer
Wrong Answer
9. World Ozone day is celebrated on
16 September
21 April
25 December
30 January
Correct Answer
Wrong Answer
10. Ozone hole is caused by
Acetylene
Ethylene
Chlorofluoro carbons
Methane
Correct Answer
Wrong Answer
11. Which one of the following gases is responsible for the decrement in the ozone layer?
Nitrous oxide
Chlorofluoro carbon
Carbon dioxide
Carbon mono-oxide
Correct Answer
Wrong Answer
12. Which one of the following is not responsible for the depletion of ozone layer?
CFC-12 used in refrigerators
Methyl chloroform used as solvent
HALON-1211 used in fire fighting
Nitrous oxide
Correct Answer
Wrong Answer
13. Among the following greenhouse gases, which does not cause ozone pollution in the troposphere?
Methane
Carbon mono-oxide
Nitrogen oxides (NO)
Water vapours
Correct Answer
Wrong Answer
14. Formation of ozone hole is maximum over
India
Africa
Antarctica
Europe
Correct Answer
Wrong Answer
15. Montreal Protocol is related to the protection of
Greenhouse gases
Acid rain
Ozone layer
Endangered species
Correct Answer
Wrong Answer
16. Montreal Protocol is related to
White Lion
Chlorofluoro carbon
Water pollution
Agriculture
Correct Answer
Wrong Answer
17. Which gas is filled in refrigerators?
Ammonia
Mafron
Methane
Acetylene
Correct Answer
Wrong Answer
18. Which one of the following teams of scientists first discovered 'ozone hole' over Antarctica?
Russian team
German team
American team
British team
Correct Answer
Wrong Answer
19. In stratosphere, the level of ozone is naturally regulated by
Nitrous oxide
Nitrogen dioxide
CFC
Water vapours
Correct Answer
Wrong Answer
20. The formation of the ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?
Presence of prominent tropospheric turbulence and inflow of chlorofluoro carbons
Presence of prominent polar front and stratospheric clouds and inflow of chlorofluoro carbons
Absence of polar front and stratospheric clouds and inflow of methane and chlorofluoro carbons
Increased temperature at polar region due to global warming
Correct Answer
Wrong Answer
21. Who among the following had discovered 'ozone halo' over Tibetan Plateau in 2005?
M. Molina
Joseph Farman
G.W. Kent Moore
Marcus Rex
Correct Answer
Wrong Answer
22. Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
Bretton Woods Conference
Montreal Protocol
Kyoto Protocol
Nagoya Protocol
