Question 5 • Nova Intercepted Questions
The Montreal Protocol is a global agreement to protect the stratospheric ozone layer by phasing out ozone-depleting substances, so A describes it. It was adopted in 1987, after the Antarctic ozone hole had been discovered and reported in 1985, making B the statement that does not describe it. The treaty is also an example of collective action and is named for Montreal, where it was agreed.
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