Arrange the following terms chronologically according to the time these were first introduced.
1.Principle of common but differentiated responsibility
2.Sustainable Development
3.Nationally Determined Contributions
4.Clean Development Mechanism
A1, 2, 3, 4
B2, 1, 3, 4
C2, 1, 4, 3 ✓ Correct
D1, 2, 4, 3
Correct answer: (C) 2, 1, 4, 3
Explanation
Arranged by when each term first appeared, the order is sustainable development, common but differentiated responsibility, clean development mechanism, then nationally determined contributions.
Sustainable development entered wide use with the 1987 Brundtland report.
The principle of common but differentiated responsibility was framed at the 1992 Rio Earth Summit.
The Clean Development Mechanism was created under the 1997 Kyoto Protocol.
Nationally determined contributions were introduced by the 2015 Paris Agreement.
Each idea built on the climate diplomacy that came before it.
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