Winds, Storms and cyclones

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