What is greenhouse effect? Explain global warming.

Explanation

Green house effect : Earth will absorb heat radiation and reradiate heat energy of longer wave length . This longer wave length heat radiation is reflected back to earth due to green house gases such as Carbondioxide `[CO_(2)]`, Methane `(CH_(4))`, Chlorofiurocarbons, Ozone `(O_(3))`, etc . As a result temperature of earth `s atmosphere is gradually increasing .
This is known as "green house effect" .
Global warming : Earth receives heat energy during day time from sun. It reradiates heat energy in the form of longer electromagnetic waves.
But due to presence of green house gases the longer electromagnetic waves were reflected back to earth . As a result temperature of earth` s atmosphere is gradually increasing.
This process will increase with the increased content of green house gases in atmosphere . As a result temperature of reath`s atmosphere increases gradually.