Question

Dry air and moist air which I'd havier

Answer 1

Humidity is water vapor, not liquid water, and water vapor molecules are lighter than the molecules of nitrogen and oxygen that make up approximately 99% of the atmosphere. So, dry air is heavier than humid air.......

Answer 2

hey.. here's ur answer...,

moist air is heavier than dry air.. bcoz it contains tiny partical of water.

hope it helps!!
:)