Question

what is greenhouse effect?

Answer 1

The greenhouse gases in the atmosphere allow the sun’s short wavelength radiation in, and because of the chemical properties of the gases, they do not interact with sunlight.  But they do absorb the longwave radiation from the earth and emit it back into the atmosphere, different from a greenhouse which does not allow the longwave radiation to escape through the glass. The increase in trapped energy leads to higher temperatures at the earth's surface. This has caused some people to rename the process ‘the atmospheric greenhouse effect’ or just ‘the greenhouse effect’.

Answer 2

a phenomena in which the atmosphere of a planet traps the radiation emitted by the sun .... it is generally caused by gases like co2 , methane...