Ozone Layer Quiz : Environment and Ecology Quiz

Question 1. Which is the lowest layer of the atmosphere?

(A) Stratosphere

(B) Ozonosphere

(C) Ionosphere

(D) Troposphere

Question 2. Ozone layer is above the earth crust around?

(A) 50 km

(B) 300 km

(C) 2000 km

(D) 20 km

Question 3. Which of the following is not true about chlorofluorocarbon? 

(A) It is used as a refrigerant

(B) It is not responsible for greenhouse effect

(C) It is responsible for reducing ozone in the stratosphere

(D) It is inactive in lower atmosphere

Question 4. Place where ozone layer is primly found is?

(A) Troposphere

(B) Stratosphere

(C) Mesosphere

(D) Ionosphere

Question 5. The radiation that is absorbed by ozone present in the atmosphere is?

(A) Infrared

(B) Visible

(C) Ultraviolet

(D) Microwave

Question 6. Which is responsible for Ozone Hole?

(A) CO2

(B) SO2

(C) O2

(D) CFC

Question 7. Ozone layer in atmosphere?

(A) Produces rain

(B) Produces pollution

(C) Provides safety to life on earth from ultraviolet radiation

(D) Produces oxygen in the atmosphere

Question 8. Ozone protects biosphere from? 

(A) Infrared rays

(B) Ultraviolet rays

(C) X-rays

(D) Gama rays

Question 9. Harmful ultraviolet radiation coming from the sun can cause?

(A) Liver cancer

(B) Brain cancer

(C) Oral cancer

(D) Dermal cancer

Question 10. Why is ozone layer useful to humanity?

(A) It supplies oxygen to the atmosphere

(B) It prevents the Sun’s ultraviolet rays from reaching the Earth

(C) It controls the temperature of the Earth

(D) None of the above

Question 11. Ozone hole is caused by?

(A) Acetylene

(B) Ethylene

(C) Chlorofluorocarbons

(D) Methane

Question 12. World Ozone day is celebrated on?

(A) 16 September

(B) 21 April

(C) 25 December

(D) 30 January

Question 13. Which one of the following is not responsible for the depletion of ozone layer?

(A) CFC-12 used in refrigerators

(B) Methyl chloroform used as solvent

(C) HALON-1211 used in fire fighting

(D) Nitrous oxide

Question 14. Which one of the following gases is responsible for the decrement in the ozone layer?

(A) Nitrous oxide

(B) Chlorofluorocarbon

(C) Carbon dioxide

(D) Carbon mono-oxide

Question 15. Formation of ozone hole is maximum over?

(A) India

(B) Africa

(C) Antarctica

(D) Europe

Question 16. Among the following greenhouse gases, which does not cause ozone pollution in the troposphere? 

(A) Methane

(B) Carbon mono-oxide

(C) Nitrogen oxides (NO)

(D) Water vapours

Question 17. Montreal Protocol is related to? 

(A) White Lion

(B) Chlorofluorocarbon

(C) Water pollution

(D) Agriculture

Question 18. Montreal Protocol is related to the protection of?

(A) Greenhouse gases

(B) Acid rain

(C) Ozone layer

(D) Endangered species

Question 19. Which one of the following teams of scientists first discovered ‘ozone hole’ over Antarctica? 

(A) Russian team

(B) German team

(C) American team

(D) British team

Question 20. Which gas is filled in refrigerators?

(A) Ammonia

(B) Mafron

(C) Methane

(D) Acetylene

Question 21. 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?

(A) Presence of prominent tropospheric turbulence and inflow of chlorofluoro carbons

(B) Presence of prominent polar front and stratospheric clouds and inflow of chlorofluoro carbons

(C) Absence of polar front and stratospheric clouds and inflow of methane and chlorofluorocarbons

(D) Increased temperature at polar region due to global warming

Question 22. In stratosphere, the level of ozone is naturally regulated by?

(A) Nitrous oxide

(B) Nitrogen dioxide

(C) CFC

(D) Water vapours

Question 23. Which of the following is not correctly matched?

(A) Ozone – Chlorofluorocarbon (CFC)

(B) Acid rain – Nitric acid

(C) Rocket fuel – Kerosene oil

(D) Green House Effect – Carbon dioxide

Question 24. Who among the following had discovered ‘ozone halo’ over Tibetan Plateau in 2005? 

(A) M. Molina

(B) Joseph Farman

(C) G.W. Kent Moore

(D) Marcus Rex

Question 25. Consider the following statements. Chlorofluorocarbons, known as ozone-depleting substances, are used :

1. In the production of plastic foams.
2. In the production of tubeless tyres.
3. In cleaning certain electronic components.
4. As pressurizing agents in aerosol cans.

Which of the statements(s) given above is/are correct?

(A) 1, 2 and 3

(B) Only 4

(C) 1, 3 and 4

(D) 1, 2, 3 and 4

Question 26. Which one of the following is associated with the issue of control and phasing out of the use of ozonedepleting substances? 

(A) Bretton Woods Conference

(B) Montreal Protocol

(C) Kyoto Protocol

(D) Nagoya Protocol

Question 27. Consider the following statements.

• Assertion (A): Ozone is essential for biotic life.
  
• Reason (R): The ozone layer protects the earth’s surface from high energy radiation

Select the correct answer from the code given below.

(A) Both (A) and (R) are true and (R) is the correct explanation of (A)

(B) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(C) (A) is true, but (R) is false

(D) (A) is false, but (R) is true

Question 28. Which of the following substances is/are ozone-depleting?

1. Chlorofluoro carbons
2. Halans
3. Carbon tetrachloride

Select the correct answer from the codes given below. 

(A) Only 1

(B) Only 1 and 2

(C) Only 1 and 3

(D) 1, 2 and 3