Arrange the following in chronological order:

Question

Arrange the following in chronological order:

1. Kyoto Protocol

2. Montreal Protocol

3. Vienna Convention

4. Basel Convention

1. A. 2, 3, 4, 1
2. B. 2, 4, 1, 3
3. C. 3, 2, 4, 1 (Correct answer)
4. D. 3, 1, 2, 4

Correct Answer

Option C — 3, 2, 4, 1

Detailed Solution & Explanation

The correct answer is 3, 2, 4, 1.

Key Points

• Chronological order: Vienna Convention (1985) → Montreal Protocol (1987) → Basel Convention (1989) → Kyoto Protocol (1997).
• In the given numbering: Vienna(3), Montreal(2), Basel(4), Kyoto(1) = 3, 2, 4, 1.

Additional Information

• What each instrument does:
  • Vienna Convention (1985) — framework for protecting the ozone layer
  • Montreal Protocol (1987) — phases out ozone-depleting substances; the only UN treaty ratified by every country
  • Basel Convention (1989) — controls transboundary movement of hazardous waste
  • Kyoto Protocol (1997) — first binding greenhouse-gas reduction targets, later succeeded by the Paris Agreement (2015)
• A useful memory hook: the ozone treaties come first and in pairs, waste follows, and climate comes last.