Montreal Protocol 1987 was__________?
Correct answer: C. Treaty to protect ozone layer
- A. Treaty among nations to reduce nuclear arsenals
- B. Climate control treaty
- C. Treaty to protect ozone layer
- D. Trade policy about tarrifs
Explanation
The 1987 Montreal Protocol is an international agreement to phase out substances that destroy the ozone layer, especially CFCs. It is not a nuclear-arms or tariff treaty.
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About Environment and Atmosphere
Environmental science covers ecosystems, food chains and webs, energy flow, biogeochemical cycles, biodiversity, natural resources and population effects. Atmospheric study includes the layers and composition of air, weather and climate, greenhouse gases, global warming, ozone depletion, acid rain and pollution, with climate change distinguished from ordinary weather variation.
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