What is the correct chronological order of the following from older to newer?

1.Paris Agreement

2.Convention on Biodiversity

3.Kyoto Protocol

4.Montreal Protocol

5.Stockholm Conference

A2, 4, 3, 5, 1

B2, 3, 4, 5, 1

C5, 4, 3, 2, 1

D5, 4, 2, 3, 1 ✓ Correct

Correct answer: (D) 5, 4, 2, 3, 1

Explanation

From oldest to newest the sequence runs Stockholm Conference, Montreal Protocol, Convention on Biodiversity, Kyoto Protocol, Paris Agreement.

The Stockholm Conference of 1972 was the first major global meeting on the human environment.

The Montreal Protocol of 1987 targeted ozone-depleting substances.

The Convention on Biodiversity was opened at the 1992 Rio Earth Summit.

The Kyoto Protocol of 1997 set binding greenhouse gas cuts for developed nations.

The Paris Agreement of 2015 introduced nationally determined climate pledges.

Each of these milestones built on the environmental diplomacy that Stockholm first set in motion.

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