Home / Treaty / Montreal Protocol
Treaty Montreal Protocol
Asked 4 times across 2 UPSC exams over 11 years (2015–2026), peaking in 2015.
Key insights
- Most tested in GEO — 3 of 4 PYQs
- Most asked in 2015
- Recurs across 4 years (2015–2026)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2015 → GEO 2021
How the concept evolved
Rising — more than half its appearances (3 of 4) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
GEO2026
Consider the following statements as regards to the protection of ozone layers
- The Vienna Convention aims to protect the ozone layer
- The Montreal Protocol is recognized as the most successful international environmental treaty
Which of the statements given above is/are correct?
- A I only
- B II only
- C Both I and II
- D Neither I nor II
Answer key not yet available (pending official release)
Environment & Ecology › International Environmental Agreements
GEO2025
Which one of the following Protocols was signed in the year 1987 to reduce the production and use of ozone-depleting substances?
- A Kyoto Protocol
- B Montreal Protocol ✓
- C Nagoya Protocol
- D Cartagena Protocol
✓ Correct answer: (B)
Environment & Ecology › International Environmental Agreements
GEO2021
Montreal Protocol ratifies:
- A restricting the production of CFCs.
- B sustainable development.
- C carbon trading.
- D restricting the global average temperature below 2 °C above the pre-industrial level.
Answer key not yet available (pending official release)
Environment & Ecology › International Environmental Agreements
Study how UPSC repeats — not just the papers
₹199 / 1 year · Founding Member
Full access unlocks the three things no PYQ PDF gives you:
① Cross-exam learning — see the same idea recur across CSE, CAPF, CDS and NDA.
② Topic evolution — how each idea is framed, year by year.
③ Question intelligence — every PYQ + answer, linked to related concepts and similar questions.
e.g. Round Table Conference: CDS 2017 → CSE 2017 → … → CAPF 2024
15 days free, no card required — then ₹199 for 1 year.
Start your 15-day free trial →