291UPPSC2006Environment & EcologyEnglish
Ozone layer in atmosphere
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Correct option: C — Provides safety to life on earth from ultraviolet radiation
Free · past papers · answers included
Environment & Ecology MCQ practice free online · page 30
Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.
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- 292MPPSC1994Environment & EcologyEnglish
Why is ozone layer useful to humanity?
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Correct option: B — It prevents the Sun’s ultraviolet rays from reaching the Earth
- 293UPPSC2014Environment & EcologyEnglish
Harmful ultraviolet radiation coming from the sun can cause
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Correct option: D — Dermal cancer
- 294UPPSC2014Environment & EcologyEnglish
World Ozone day is celebrated on
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Correct option: A — 16 September
- 295UPPSC2016Environment & EcologyEnglish
Ozone hole is caused by
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Correct option: C — Chlorofluoro carbons
- 296UPPSC2014Environment & EcologyEnglish
Which one of the following gases is responsible for the decrement in the ozone layer?
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Correct option: B — Chlorofluoro carbon
- 297UPPSC2002Environment & EcologyEnglish
Which one of the following is not responsible for the depletion of ozone layer?
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Correct option: B — Methyl chloroform used as solvent
- 298HPPSC2017Environment & EcologyEnglish
Among the following greenhouse gases, which does not cause ozone pollution in the troposphere?
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Correct option: B — Carbon mono-oxide
- 299Sikkim PSC2019Environment & EcologyEnglish
Formation of ozone hole is maximum over
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Correct option: C — Antarctica
- 300CGPSC2015Environment & EcologyEnglish
Montreal Protocol is related to the protection of
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Correct option: C — Ozone layer
Environment & Ecology practice — common questions
Page 30 of this set has 10 questions on it.
Are these Environment & Ecology questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
Where do these Environment & Ecology MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".