As a result of which treaty, ozone hole in Antarctica is slowly healing?
Correct answer: C. Montreal protocol
- A. Koyoto protocol
- B. Ottawa treaty
- C. Montreal protocol
- D. Oslo Accord
Explanation
The Montreal Protocol controls ozone-depleting chemicals such as CFCs, allowing stratospheric ozone to recover gradually. The Kyoto Protocol mainly addressed greenhouse-gas emissions.
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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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