Which of these correctly defines wind?
  • Hot air
  • Moving air
  • Cold air
  • Humid air
Which effect is created by high speed winds?
  • High pressure
  • Lightning
  • Rains
  • Low pressure
What happens to air on heating?
  • It contracts
  • It expands
  • Moves down
  • Stops moving
Which part of the earth gets the maximum amount of sunlight?
  • North Pole
  • South Pole
  • Equator
  • Tropics
Which of these shows the direction of wind?
  • Wind vane
  • Anemometer
  • Barometer
  • Manometer
Collection of rainwater from the rooftops of buildings
  • Water table
  • Drip irrigation
  • Rainwater harvesting
  • Surface water
Which of these shows the speed of wind?
  • Manometer
  • Anemometer
  • Wind vane
  • Barometer
The monsoon comes to India from which direction?
  • Northeast
  • Northwest
  • Southeast
  • Southwest
Rains during winter in India are caused by which wind?
  • Northeast
  • Northwest
  • Southeast
  • Southwest
What is another name for cyclone in japan ?
  • Tornadoes
  • Typhoon
  • Hurricane
  • Thunderstorm
Which of the following is true about "Eye" of a cyclone?
  • It is an area of high pressure
  • It is an area of low pressure
  • It has lots of clouds and rains
  • It has high temperature
Which of the following plays an important role in the early- warning systems for cyclones?
  • Helicopters
  • Submarines
  • Satellites
  • Stars
During the formation of rain, what happens when water vapor changes to rain drops
  • Heat is absorbed.
  • Heat is released
  • Heat is first absorbed and then released.
  • There is no exchange of heat.
On the earth, the winds from the north and the south blow towards the equator. What can we understand from this?
  • Earth is round or spherical in shape.
  • It is hotter in and around the equator.
  • It is hotter in and around the north and the south.
  • Wind does not flow from the east or the west.
Which of the following is NOT affected by air pressure?
  • Riding a bicycle against the wind
  • Flying a kite
  • A ball falling to the ground
  • Drinking a soft drink through a straw
What is the best thing to do when strong winds blow over a hut having a weak thatched roof?
  • Open the doors and windows
  • Close all the doors and windows
  • Make holes in the roof
  • Burn wood inside
"Water vapor in the atmosphere condenses to form clouds?: From this statement, what can be concluded?
  • The temperature decreases as we go higher.
  • The temperature increases as we go higher.
  • Pressure increases as we go higher.
  • Pressure decreases as we go higher.
Warm air is lighter than cold air. Why?
  • Warm air has more pressure.
  • Molecules are closer in warm air.
  • Warm air expands and becomes lighter.
  • Both (A) and (B)
Identify the correct statement among the following.
  • Wind movements are caused by uneven heating of air on the earth.
  • The movement of air from land to sea is called sea breeze.
  • When the air moves from sea to land it is called land breeze.
  • When air moves from low pressure to high pressure it is called wind.
What is Anemometer?
  • A device for measuring atmospheric pressure
  • A device for measuring wind speed
  • A device for measuring atmospheric temperature
  • A device for measuring humidity
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