Question

The amount of vapour in 1 cu.m. of air shows the -----------------------.

Answer 1

"The amount of water vapor in 1 cubic meter of air shows the humidity index of the atmosphere.

Water Vapor is formed by evaporation of water in the atmosphere. When the water gets changed into gaseous state its gets mixed up with the atmosphere and raises the moisture content in the air.

This is commonly known as the humidity index of the atmosphere. This process is the part of the hydrological cycle.

"

Answer 2

humidity of the atmosphere is your answer according to your question