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Top PYQ MCQs on Ozone Layer Set -1
Q1. Who among the following had discovered the ‘ozone halo’ over the Tibetan Plateau in 2005? [UPPCS (Mains) 2013]
[A] M. Molina
[B] Joseph Farman
[C] G.W. Kent Moore
[D] Marcus Rex
Q2. Which is responsible for the Ozone Hole? [Chhattisgarh PCS (Pre) 2014]
[A] CO2
[B] SO2
[C] O2
[D] CFC
Q3. World Ozone Day is celebrated on: [UPPCS (Pre) 2014, 2015]
[A] 16 September
[B] 21 April
[C] 25 December
[D] 30 January
Q4. The ozone layer is above the earth’s crust around [RAS/RTS (Pre) 2012]
[A] 50 km
[B] 300 km
[C] 2000 km
[D] 20 km
Q5. The ozone hole is caused by [UPPCS (Pre) 2016]
[A] Acetylene
[B] Ethylene
[C] Chlorofluorocarbons
[D] Methane
Q6. Which of the following gases is responsible for the decrement in the ozone layer? [UPRO/ARO (Pre) 2014 42nd BPSC (Pre) 1997 Uttarakhand PCS (Pre) 2005]
[A] Nitrous oxide
[B] Chlorofluorocarbon
[C] Carbon dioxide
[D] Carbon mono-oxide
Q7. Which one of the following is not responsible for the depletion of the ozone layer? [UPPCS (Pre) 2002 UP Lower Sub. (Pre) 2002]
[A] CFC-12 used in refrigerators
[B] Methyl chloroform used as a solvent
[C] HALON-1211 used in firefighting
[D] Nitrous oxide
Q8. The radiation that is absorbed by ozone present in the atmosphere is: [UPPCS (Pre) 2013]
[A] Infrared
[B] Visible
[C] Ultraviolet
[D] Microwave
Q9. Which greenhouse gases do not cause ozone pollution in the troposphere? [Himachal Pradesh PSC (Pre) 2017 UPPCS (Pre) 2008]
[A] Methane
[B] Carbon mono-oxide
[C] Nitrogen oxides (NO)
[D] Water vapours
Q10. Harmful ultraviolet radiation coming from the sun can cause: [UPPCS (Pre) 2014]
[A] Liver cancer
[B] Brain cancer
[C] Oral cancer
[D] Dermal cancer
Q11. Montreal Protocol is related to: [Andhra Pradesh PSC (Pre) 2018 MPPCS (Pre) 2014]
[A] White Lion
[B] Chlorofluorocarbon
[C] Water pollution
[D] Agriculture
Q12. A place where the ozone layer is primly found is [UPPCS (Pre)(Spl) 2008 UP UDA/LDA (Spl)(Mains) 2010]
[A] Troposphere
[B] Stratosphere
[C] Mesosphere
[D] Ionosphere
Q13. Which gas is filled in refrigerators? [Gujarat PSC (Pre) 2019 Uttarakhand PCS (Pre) 2010]
[A] Ammonia
[B] Mafron
[C] Methane
[D] Acetylene
Q14. The ozone layer in the atmosphere [UPPCS (Pre) 2006 Uttarakhand PCS (Pre) 2006 UP Lower Sub. (Pre) 2004]
[A] Produces rain
[B] Produces pollution
[C] Provides safety to life on Earth from ultraviolet radiation
[D] Produces oxygen in the atmosphere
Q15. Which one of the following teams of scientists first discovered the ‘ozone hole’ over Antarctica? [UPPCS (Mains) 2013]
[A] Russian team
[B] German team
[C] American team
[D] British team
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