Factors Affecting Air Movement

Q. What happens to humidity if there is an increase in atmospheric pressure?

1. Humidity decreases
2. Humidity stays the same
3. Humidity increases
4. None of these phenomena occur

Q. Why does the wind get deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere?

[1 mark]

1. Due to rotation of earth on its axis
2. Due to revolution of earth around the sun
3. Due to the inclination of earth's axis
4. Due to having permanent low pressure over the poles

Q. Match the following divisions of wind with respect to their characteristic features:
i. gust a. when wind moves very fast and blows things around
ii. storm b. when wind moves at a slow pace and we feel comfortable
iii. breeze c. when wind blows in short and fast burst

1. i - a
   ii - c
   iii - b
2. i - b
   ii - c
   iii - a
3. i - b
   ii - a
   iii - c
4. i - c
   ii - a
   iii - b

Q. An imaginary line connecting places of equal barometric pressure is known as .

1. isobar
2. pressure gradient
3. friction
4. isotherm

Q. Assertion (A): Wind gets deflected to the right, in the northern hemisphere and to the left in the southern hemisphere.

Reasoning (R): The earth's rotation is responsible for this.

1. A is true but R is false.
2. A is false but R is true.
3. Both A and R are correct. R is a correct explanation of A.
4. Both A and R are false.

Q. The change in pressure with horizontal distance is termed as .

1. friction
2. evaporation
3. coriolis force
4. pressure gradient

Q. What is pressure gradient?

1. The rate of change of pressure with respect to distance.
2. The rate of change of pressure with respect to temperature.
3. The rate of change of pressure with respect to climate.
4. The rate of change of pressure with respect to friction.

Q. On the rotating Earth, wind gets deflected to the _________, in the Northern Hemisphere and to the _____ in the Southern Hemisphere.

1. left, left
2. right, right
3. right, left
4. left, right

Q. Choose the correct statement(s) from the following.

1. Earth spins on its axis from East to West.
2. The points on the equator spin faster than those near the poles.
3. In the northern hemisphere, winds get deflected to the right.
4. Coriolis force does not impact the direction of wind movement.

Q.

How does the atmospheric pressure vary with altitude?

Q. Where is the speed of the wind higher?

1. Forest covers
2. Ocean surfaces
3. Plains
4. Mountains

Q. Which of the following does not affect air movement?

1. Friction
2. Coriolis force
3. Condensation
4. Pressure gradient

Q. On which factors is the wind movement dependent?

1. Friction
2. Pressure gradient
3. Coriolis force
4. Population of a region

Q. Which of the following is an appropriate term for ''the wind that comes in a short and fast burst"?

1. Gust
2. Breeze
3. Monsoon
4. Cyclone

Q. Corolis effect tends to deflect moving objects to the left in the northern hemisphere.

1. True
2. False