Correct Answer is : lighter than cold air hence warm air rises up

heavier than cold air hence warm air rises up

lighter than cold air hence warm air moves down

lighter than cold air hence warm air rises up

heavier than cold air hence warm air moves down

SSC CHSL 7 Mar 2018 Shift 2 Paper

Section: General Awareness

Question : 98 of 100

Marks: +1, -0

Warm air is ______.

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