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JadaGigi
Hi there !

Global warming is a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.

Hope this helps !
annieahmed55998
The urban island heat effect. When buildings are close together, they tend to absorb or keep heat it. It’s the same with dark roofing. That’s the reason why cities are usually hotter then the country sides