Wind current is caused by
Difference in temperature
Difference in air pressure
Both of these
None of these
Polar regions are
No pressure regions
Low pressure regions
High pressure regions
How does high speed wind affect the air pressure of the region?
Increases the air pressure
Reduces the air pressure
Doesn't change the air pressure
Tropical cyclones
Typhoons
Hurricanes
Dangerous form of monsoon wind
Cyclone
Thunderstorm
The instrument used to measure speed of wind is called
Anemometer
Barometer
Wind vane
Which of the following has most devastating effects .
Cyclones
Tornadoes
Thunderstorms
Regions near to the equator are
When wind occurs , leaves of trees
Become steady
Bend against the direction of wind
Bend in the direction of wind
