Tag: in search of the source of wind

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Questions Related to in search of the source of wind

Multiple choice geography in search of the source of wind variations in atmospheric pressure properties of air pressure belts

The speed and the direction of wind are based on which of the following? 

  1. Pressure gradient force

  2. Coriolis force

  3. Friction

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pressure gradient force,

winds balanced by the Coriolis and Pressure Gradient forces. An air parcel initially at rest will move from high pressure to low pressure because of the pressure gradient force (PGF). ... As the wind gains speed, the deflection increases until the Coriolis force equals the pressure gradient force.
Coriolis force,
The Coriolis effect influences wind by deflecting its path to the right in the Northern Hemisphere. The sequence of weather satellite images shows that the actual wind direction is from the southwest. The satellite images show atmospheric motion over the northern Pacific Ocean for a 36-hour period.
Friction,
 Winds affected by friction. Geostrophic wind blows parallel to the isobars because the Coriolis force and pressure gradient force are in balance. ... As we move higher, surface features affect the wind less until the wind is indeed geostrophic.

Multiple choice geography in search of the source of wind variations in atmospheric pressure properties of air pressure belts the concept of bernoulli's principle air exerts pressure

The atmospheric pressure decreases at the rate of ______________.

  1. 1 millibar/altitude of 10 meters

  2. 1 millibar/altitude of 15 meters

  3. 1 millibar/altitude of 18 meters

  4. 1 millibar/altitude of 20 meters
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Near Earth's surface the pressure decreases with height at a rate of about 1 millibars for every 10 metres. However, over cold air the decrease in pressure can be much steeper because its density is greater than warmer air.

Multiple choice geography in search of the source of wind variations in atmospheric pressure properties of air pressure belts the concept of bernoulli's principle air exerts pressure

When the temperature increases atmospheric pressure _________.

  1. increases

  2. decreases

  3. remains same

  4. became zero
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There exists a negative relation between pressure and temperature. When temperature increases pressure will fall and vice versa. That is why, pressure increases from equatorial region towards the polar region.

Multiple choice geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

Name the Planetary winds that meet the Inter Tropical Convergence Zone.

  1. Westerlies and Easterlies

  2. North east trade winds, South east trade winds

  3. South east trade winds, Westerlies

  4. Trade winds, Easterlies
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Inter Tropical Convergence Zone (ITCZ) is a low-pressure trough where the trade winds from both hemispheres converge. Specifically, the north-east trade winds from the Northern Hemisphere and the south-east trade winds from the Southern Hemisphere meet here.

Multiple choice geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

Jet streams,located approximately over ${27}^{o}-{30}^{o}$ north latitude is known as _______.

  1. polar jet stream

  2. subtropical jet stream

  3. north-westerly jet streams

  4. south-easterly jet streams
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Jet streams are some of the strongest winds in the atmosphere. There are two types of jet streams: Subtropical jet stream and polar jet stream. The streams that are centered at about 30$°$ latitude are subtropical jet stream.

Multiple choice geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

Monsoon is derived from Arabic word _____.

  1. Maussum

  2. Mausim

  3. Moussam

  4. Maussem
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The word “monsoon” is derived from the Arabic word mausim, which means season. Basically, it describes a seasonal wind shift over a region that is usually accompanied by a dramatic increase in precipitation. Monsoon is experienced by Asia, North America, etc. Monsoon is the main source of water. Monsoons are vital to agriculture and the economy.

Multiple choice geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

The South-east Trade winds are attracted towards the Indian sub-continent in the month of June due to ________.

  1. The effect of the westerlies

  2. The effect of Somaliya current

  3. The presence of low atmospheric pressure over North-west India

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

During June, intense heating of the landmass over north-west India creates a strong low-pressure area. This low-pressure pulls the south-east trade winds of the Southern Hemisphere across the equator, where they deflect and become the south-west monsoon winds.

Multiple choice geography in search of the source of wind atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

The wind blowing in the Northern Plains in summer is known as ________.

  1. Kal baisakhi

  2. Loo

  3. Mango Shower

  4. Western disturbance
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Loo is strong, gusty, hot, dry wind blowing during the day over the north and northwestern India. It is especially strong in the months of May and June.