The agency in India that gives warning against severe weather phenomena like tropical cyclone , heavy rains etc , is
GSI
IMD
ONGE
None of these
The device used to measure wind speed is
Anemometer
Barometer
Wind vane
Tropical cyclones
Typhoons
Hurricanes
For a boat , it is easier to sail
When there is no wind
Opposite to the direction of wind
In the same direction of the wind
Hot air regions are also called
Low pressure regions
High pressure regions
No pressure regions
Cold air regions are also called
Low pressure region
Tropical cyclone
What happens to two balloons , hung up on a stick , when you blown out air between them . .
Move apart
Come closer
Move up
Do not move
Wind current is caused by
Difference in temperature
Difference in air pressure
Both of these
