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 atmospheric pressure, pressure belts and winds elements of weather and climate :wind monsoon phenomena and its mechanism

Which of the following names is given to the planetary winds blowing between the tropics?

  1. Monsoon

  2. Polar winds

  3. Westerlies

  4. Trade winds
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The planetary winds which blows between the tropics are termed as trade wind. Trade wind move out from the sub tropical high-pressure belt towards equators. In different sections of their path, the condition of temperature, humidity, and density is not uniform. 

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

__________ are strong moisture laden winds  with low pressure at the center surrounded by high pressure.

  1. Cyclones

  2. Tsunamis

  3. Hurricanes

  4. Earthquake
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Cyclones
Cyclones are violent Storms with an intense spiral and accompanied by strong winds and heavy rains. They are caused due to strong winds blowing around the central area having low atmospheric pressure.

Causes of cyclones
As we know that when water vaporizes, it absorbs heat from the surroundings. Water vapor rises in the atmosphere where it cools down. When water vapor changes back into liquid the heat is released into the atmosphere. This warms the air around it.

The warm air tends to rise and causes a drop in the pressure. The air moves from surrounding high-pressure areas to the central low-pressure area. This cycle is repeated. The chain of events leads to the formation of very low-pressure system surrounded by with very high-speed winds. This weather condition is a cyclone.
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

Atmospheric pressure in the center of a tropical cyclone is :

  1. Very low because of dense sinking air

  2. Very low because of rising warm air

  3. Very high because of sinking warm air

  4. Very high because of converging winds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tropical cyclone: it is a rapidly rotating storm with a low pressure centre, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain. The low pressure is due to rising warm air.

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 an example of ______.

  1. Planetary winds

  2. Trade winds

  3. Seasonal winds

  4. Local winds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Monsoon is an example of seasonal wind. It is a seasonal modification of general planetary wind system. In summer, there is warm moist wind blowing from ocean towards land, while during the winter months a cold and dry wind originating on the land blows seaward. Monsoon winds are most powerful in India and China. In summer monsoon winds are known as south west monsoon, it is moist and brings a lot of rain. In winter it is known as north-east monsoon. As it comes from interior it is cold and dry. 

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

Polar region experiences the ______.

  1. Easterlies

  2. Westerlies

  3. Northerlies

  4. Southernlies
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • The polar easterlies (also Polar Hadley cells) are the dry, cold prevailing winds that blow from the high-pressure areas of the polar highs at the North and South Poles towards low-pressure areas within the Westerlies at high latitudes.
  • When air moves near the poles, cold temperatures shrink the air.
  • Cold air subsides at the pole creating the high pressure, forcing a southerly (northward in the southern hemisphere) outflow of air towards the equator.
  • This outflow is then deflected westward by the Coriolis effect, therefore these prevailing winds blow from the east to the west.
  • Since the winds originate in the east, they are then known as easterlies.
  • Unlike the westerlies in the middle latitudes, the polar easterlies are often weak and irregular.

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

Storms in the Pacific ocean are known as ______.

  1. Hurricanes

  2. The Typhoon

  3. Cyclones

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

Typhoon,

In the Atlantic and northern Pacific, the storms are called "hurricanes," after the Caribbean god of evil, named Hurrican. In the northwestern Pacific, the same powerful storms are called "typhoons." In the northern Indian Ocean, they're called "severe cyclonic storms."

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

Which winds blow North East in Northern Hemisphere?

  1. Westerlies

  2. Trade winds

  3. Polar winds

  4. Seasonal winds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Trade Winds:
These are extremely steady winds blowing from sub-tropical high pressure areas (30°N and S) towards the equatorial low pressure belt. These winds should have blown from the north to south in Northern Hemisphere and south to north in Southern Hemisphere, but, they get deflected to the right in Northern Hemisphere and to the left in Southern Hemisphere due to Coriolis effect and Ferrel’s law. Thus, they blow as north eastern trades in Northern Hemisphere and south eastern trades in Southern Hemisphere.

They are also known as tropical easterlies, and they blow steadily in the same direction. They are noted for consistency in both force and direction.
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

Trade winds are ______ in direction.

  1. Easterly

  2. Westernly

  3. Northernly

  4. Southernly
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Easterly,

Trade Winds:
These are extremely steady winds blowing from sub-tropical high pressure areas (30°N and S) towards the equatorial low pressure belt. These winds should have blown from the north to south in Northern Hemisphere and south to north in Southern Hemisphere, but, they get deflected to the right in Northern Hemisphere and to the left in Southern Hemisphere due to Coriolis effect and Ferrel’s law. Thus, they blow as north eastern trades in Northern Hemisphere and south eastern trades in Southern Hemisphere.

They are also known as tropical easterlies, and they blow steadily in the same direction. They are noted for consistency in both force and direction.

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

Westerlies blow South West in ______.

  1. Northern Hemisphere

  2. Southern Hemisphere

  3. Eastern Hemisphere

  4. Western Hemisphere
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Northern Hemisphere,

The Westerlies:
These winds blow from subtropical high-pressure belts towards sub-polar low-pressure belts. They blow from the southwest direction in the northern hemisphere and from the southeast direction in the southern hemisphere. The westerlies of Southern Hemi­sphere are stronger and constant in direction than Northern Hemisphere. These winds develop be­tween 40° and 65°S latitudes and these latitudes are known as Roaring Forties, Furious Fifties and Shriek­ing Sixties.

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

Westerlies, a type of planetary winds, blow from _____.

  1. East to West

  2. West to East

  3. South to East

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

West- East

These winds blow from sub tropical high pressure belts towards sub-polar low pressure belts. The westerlies of Southern Hemi­sphere are more stronger and constant in direction than Northern Hemisphere. These winds develop be­tween 40° and 65°S latitudes and these latitudes are known as Roaring Forties, Furious Fifties and Shriek­ing Sixties.