Human beings are born into a hostile environment,but the degree of hostility varies with the season of the year and with the geographical. This suggests that the arguments for air conditioning might be based solely on climatic considerations
Human beings are born into a hostile environment,but the degree of hostility varies with the season of the year and with the geographical. This suggests that the arguments for air conditioning might be based solely on climatic considerations
Air is a mixture,not a compound.It is essentially composed of nitrogen,oxygen,and argon with small amounts of water vapor,carbon dioxide,and dust.Air can be liquefied and separated into its constituents by letting yhe more volatile nitrogen to boil off first....