Homework Answers
False
Explanation- Global warming and ozone hole are related to each other but not directly.
- Global warming is the increase in the average global temperature due to increase in the greenhouse gases due to human activities because greenhouse gases trap the heat from the solar radiations and keep the lower layer of atmosphere i.e troposphere warm.
- Ozone hole - ozone hole is the portion of upper layer of atmosphere i.e stratosphere which becomes devoid of ozone due to chlorofluorocarbons ( CFCs).Ozone layer acts as a protective blanket over the earth which protects the earth from harmful UV radiations from sun.
CFCs also contribute to the greenhouse effect but only 13%.Also the increase in the greenhouse gases causes warming of lower atmosphere and cooling of the stratosphere which also depletes ozone layer.
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