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प्रश्न
Define the following
CFC’s
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उत्तर
These are chloro-fluoro carbons and are used as propellants in aerosol cans, refrigerants in refrigerators, air conditioning and as solvent cleaners in the microelectronic industry.
संबंधित प्रश्न
Name two chief characteristics of atmosphere.
Define the following
Mesosphere
Give reasons for the following :
The Earth does not experience extremes of temperature as in other planets.
Atmosphere is the most dynamic element in Environment’. Discuss.
State two advantages of convectional heating of the atmosphere.
Answer the following questions
Which two gases make the bulk of the atmosphere?
Daniel Rutherford discovered ______ in atmosphere.
Give Reason:
Nitrogen and oxygen are called permanent gases of the atmosphere.
Which one of the following gases constitutes the major portion of the atmosphere?
Which one of the following gases is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation?
