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Description
At the end of this activity, students should be able to: – explain how the Earth's atmosphere evolved before reaching its present composition – describe the approximate percentage composition of the atmosphere at present – discuss the structure of the atmosphere – describe the process of formation of radicals by the break-up of a covalent bond – explain how chlorine radicals can deplete the ozone layer – explain the effect of the ozone-hole expansion on human health – explain how the ozone layer is formed – describe the causes of the greenhouse effect, and what impact it could have on the living conditions on Earth.
