Green house gases – McqOptions

MCQOPTIONS

1.	Green house gases
A.	allow shorter wavelength to enter earth's atmosphere while doesn't allow longer wave-length to leave the earth's atmosphere.
B.	allow longer wavelength to enter earth atmosphere while doesn't allow shorter wave-length to leave the surface
C.	do not have wavelength specific character.
D.	show wavelength specific behaviour near the earth while far from earth these have wavelength independent behaviour.
Answer» B. allow longer wavelength to enter earth atmosphere while doesn't allow shorter wave-length to leave the surface

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