CTET paper 2, Feb 2016 Q82

82The air near a heat source gets hot and rises. The air from the sides comes into taking its place. This is the way in which the air gets heated by oil heaters. What is this process called?

Option : A
Explanation : The method of transfer of heat when warmer air or liquid which has faster moving molecules, making it less dense, rises while the cooler air or liquid around it takes the vacant space, is called convection.

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