Humidity, Dew and Fog

Q. The amount of water vapour present in air is defined using ______.

1. density
2. humidity
3. hydrophobicity
4. susceptibility

Q. Humidity at dew point is %.

1. \N
2. 50
3. 90
4. 100

Q. At $-2{}^{\circ }C$ the relative humidity at Kashmir is $70\%$. For a particular region, the maximum water that air can hold is $25g$. Calculate the amount of water vapour present in the air per unit volume.
4

1. 25.5 gm
2. 13.5 gm
3. 17.5 gm
4. 9.5 gm

Q. Humidity is given by the ratio of to .

1. water vapour mass
2. air mass
3. air volume
4. water vapour volume