Convection is the transfer of heat through liquids or gases. Example: When cold air enters your home, it mixes with warm air. Heat energy is transferred to the cooler air, and the overall temperature of the room is lowered. Result: More energy is required to replace the heat transferred to the cooler air.
Ans 2:
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ACHYUT SINGH
from
DELHI PUBLIC SCHOOL MANDLA ROAD , Jabalpur
Class : Class 8
BECAUSE IT IS AN INSULATOR.....IT CANNOT CONDUCT ELECTRICITY.....