UGC NET Ozone depletion Previous Year Questions
JRFSmart holds 11 previous-year questions on Ozone depletion from UGC NET Paper 1 (Teaching and Research Aptitude), filed under Unit 9: People, Development and Environment, drawn from 10 of the 87 exam papers in the bank (2023–2025). Each question can be practised with a full explanation and shows how often NTA has returned to the same idea.
What is asked in Ozone depletion
The questions in this topic fall under these subtopics, ordered by how many previous-year questions each has.
| Subtopic | Questions |
|---|---|
| The Montreal Protocol | 2 |
| Ozone depleting substances | 1 |
| Montreal Protocol and the Kigali amendment | 1 |
| Discovery of the ozone hole | 1 |
| Class I and Class II substances | 1 |
| Alternatives to CFCs | 1 |
| Phase-out of HCFCs | 1 |
| Health effects of UV exposure | 1 |
| The Antarctic ozone hole | 1 |
| Formation of the ozone hole | 1 |
NTA repeat analysis
Ozone depletion appears in 10 of 87 papers (11%), which JRFSmart rates as medium frequency.
Sample previous-year questions
Ozone hole appears over Antarctica mostly in the month of:
Arrange the sequence of processes leading to formation of ozone hole : A. De-humidification, de-nitrification B. Vortex formation C. Pre-conditioning D. Very low temperature polar stratosphere clouds E. Ozone destruction by catalysis Choose the correct…
Which of the following are true about class I and class II ozone depleting substances? A. Ozone depleting potential of class-I substances are far more than class II B. Ozone depleting potential of class II substances are far more than class I C. All…
Which of the following came as alternatives to chlorofluorocarbons (CFCs) as refrigerants? A. Hydrofluorocarbons B. Perfluorocarbons C. Hydrochlorofluorocarbons D. Halons Choose the correct answer from the options given below:
Hydrochlorofluorocarbons (HCFCs), replacement for chlorofluorocarbons (CFCs), have to be phased out completely by the year
Which of the following is not a disease caused due to exposure of Ultra Violet (UV)-rays, one of the Environmental hazards due to ozone layer depletion ?
Given below are two statements: Statement (I): Under Montreal Protocol, developed and developing countries have same timetable for phasing out of Ozone Depleting Substances (ODS). Statement (II): Under Montreal Protocol developing countries are referred to…
Which of the following is not responsible for the destruction of Ozone layer?
Showing 8 of 11 questions, without answers. Practise the full set with options, the official answer and JRFSmart's explanations.
Practise Ozone depletion
All 11 questions, one topic, with explanations and repeat data. One topic in every unit is free.
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