Wind Currents Due to Uneven Heating between the Equator and the Poles

Q.

Earthquakes Can Be Predicted In Advance.

1. True
2. False

Q.

Which of the following is/are methods to find the direction of wind at a given place?

1. While flying a kite, air exerts pressure on the kite due to which the kite flies. The direction in which the kite flies is the direction in which the wind is blowing

2. While riding a bicycle, the direction in which it is difficult to ride the cycle is opposite to the direction of the blowing wind

3. By freely suspending a N-S pole magnet

4. All of these

Q.

Why does air move from place to place?

Q.

Write about the cause of wind.

Q. Winds between the equator and poles do not blow in the exact north-south direction because of:

1. Uneven heating of the equator and the poles.
2. Rotation of the Earth about its axis.
3. Uneven heating of the land and sea.
4. Revolution of the moon around the Earth.

Q. Choose the correct options (one or more)
At the poles, the air is _____ than that at latitudes about 60 degrees.

1. colder
2. lighter
3. warmer
4. Heavier

Q. Assertion :The Earth does not receive an equal amount of solar energy at all latitudes. Reason: As one goes from low altitude to high altitude temperature decreases.

1. Both A and R are true and R explains A.
2. Both A and R are true but R does not explain A.
3. A is true and R is false.
4. A is false and R is true.

Q. Why does a paper slip, held between thumb and finger, get lifted up when we blow air over the paper?

1. Air lifts the paper up.
2. Disturbance produced in the air
3. Blowing over the paper reduces the air pressure above the strip.
4. None of these

Q. Why do the polar winds not move in exact North-South direction?

1. The revolution of the earth affects the direction of the winds.
2. The rotation of the earth affects the direction of the winds.
3. The Other air currents in the atmosphere change the direction of the polar winds.
4. None of these

Q. Wind currents are generated due to:

1. Uneven heating between the equator and the poles
2. Change in atmospheric pressure
3. Thunderstorm
4. Cyclone

Q. At poles, how is the direction of Polar winds ?

1. Air from Polar region moves in towards the ${60}^o$ latitude belt
2. Air from the ${60}^o$ latitude belt moves in towards Polar region
3. Air from Polar region moves in towards the equatorial region
4. Air from equatorial region moves in towards the Polar region

Q.

Question 2
Suggest two methods to find out wind direction at a given place.

Q.

Which of the following is/are methods to find the direction of wind at a given place?

1. While flying a kite, air exerts pressure on the kite due to which the kite flies. The direction in which the kite flies is the direction in which the wind is blowing

2. While riding a bicycle, the direction in which it is difficult to ride the cycle is opposite to the direction of the blowing wind

3. By freely suspending a N-S pole magnet

4. All of these

Q.

What should be the direction of trade winds? Does the rotation of earth provide any change in their direction?

Q. Which area on the Earth receives maximum sunlight ?

1. Polar region
2. Equatorial region
3. Along the latitude of Tropic of Cancer
4. Along the latitude of Tropic of Capricorn

Q.

The air near the equator is comparatively colder than the air at the poles.

1. True

2. False

Q. The winds on the earth do not flow in the exact "north to south" or "south to north" directions because:

1. of the seasons of the earth
2. of the shape of the earth
3. of the rotation of the earth
4. all of these

Q. Fill the missing words in the blank spaces in the following statements.
a. Wnid is_________ air.
b. Winds are generated due __________ to heating on the earth.
c. Air moves from a region of ___________ pressure to a region of ____________ pressure.

Q. The warm air ______, and the cooler air from the regions in the $30degrees$ latitude belt on either side of the _______moves in.

1. moves downwards, equator
2. rises, pole
3. rises, equator
4. moves downwards, pole