21.
Humidity is the result of
A
Evapouration
B
Transpiration
C
Presence of heat
D
Presence of moisture content in the air
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Humidity is the result of
Evapouration
Transpiration
Presence of heat
Presence of moisture content in the air
Factor influencing humidity includes
temperature
pressure
water
osmosis
Dew point normally occurs when a mass of air has relative humidity of
50%
75%
80%
100%
Condensation is a process which occurs when
temperature falls below 0 degree Centigrate
absolute humidity becomes equal to relative humidity
temperature in the air parcel remains static
relative humidity becomes 100% and more
Because of which one of the following factors, clouds do not precipitate in deserts?
Low pressure
Low humidity
High wind velocity
High temperature
Amount of water vapour in air is regarded as
water vapour
Humidity
Mildness
Pressure
Amount of water vapor in air is regarded as
water vapor
humidity
mildness
pressure
All of the following statements are true except
Relative humidity of a mass of air falls if temperature of the air rises
Air is saturated when its relative humidity is 100%
When air subsides its relative humidity decreases
The relative humidity of a mass of air remains constant when the air crosses over a cold land surface from a warm water surface
A device used to measure humidity is called a
Psychrometer
Hygrometer
Both
None
A psychrometer is
A hair element instrument
A wet and dry bulb humidity instrument
An instrument that senses psychological disturbances
An instrument that reads directly in dew point