Polar winds are also called ____________ .
Westerly wind
Easterly wind
Periodic wind
Permanent wind
The duration of days and night are almost equal during
The period between sunset and sunrise is called
___________ are winds blowing from the polar high pressure belts to the subpolar low pressure belts .
Polar wind
Monsoon wind
The instrument used for the measurement of atmospheric pressure is the __________ .
Thermometer
Mercury barometer
Aneroid barometer
None of these
The direction in which the sun sets is known as
North
South
East
West
The winds which have more than 100Km/hr velocity is known as
The most violent wind is
