Warming of atmosphere because of insulation by greenhouse gases

Carbon dioxide (CO2) o Water (H2O) o Methane (CH4) o Ozone (O3) o Nitrous oxides (NO and NO2) o Chlorofluorocarbons (CFCs)

Some of the heat that radiates out from the ground is trapped by greenhouse gases in the ______.

Acts as insulation for the planet

Human activity has significantly raised the levels of many greenhouse gases which is believed to cause.

Increase or decrease of greenhouse gases affects __________.

Most common greenhouse gas

Process of providing a layer that can trap heat and protect against a drop in temperature

CO2

the protective layer that absorbs or reflects high energy radiation that comes toward earth from the sun

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