Windows having double glass panes with some space between them is call – McqOptions

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1.	Windows having double glass panes with some space between them is called double glazing. Why do windows in cold countries have double glazing?
A.	For the conduction of heat
B.	For the insulation of heat
C.	For the radiation of heat
D.	All of the above
Answer» C. For the radiation of heat

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