Tag: atmospheric pressure, pressure belts and winds

Questions Related to atmospheric pressure, pressure belts and winds

Tornadoes are strong enough to pick up ___________.

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

  1. Car

  2. Truck

  3. Bus

  4. All the above

Show answer
Correct Option: D
Explanation:

  • A tornado is a violent rotating column of air extending from a thunderstorm to the ground. 
  • The most violent tornadoes are capable of tremendous destruction with wind speeds of up to 300 mph.
  • They can destroy large buildings, uproot trees and hurl vehicles hundreds of yards.
Image result for Tornadoes are

The Westerlies are cold winds that blow towards the poles.

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

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

True,

Westerlies - The directions of the Westerlies are opposite to trade winds and that is why they are also called antitrade winds. They are the cold winds that blow from subtropical high-pressure areas to circumpolar low-pressure areas, towards the poles. They flow from West to East in between 30 and 60 degrees latitudes.

If the direction of the earth's rotation on its axis is east-west, what would be the direction of Trade Wind blowing in Southern hemisphere?

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

  1. South-West

  2. South-East

  3. North-East

  4. North-West

Show answer
Correct Option: A
Explanation:

In the Northern Hemisphere, warm air around the equator rises and flows north toward the pole. As the air moves away from the equator, the Coriolis effect deflects it toward the right. It cools and descends near 30 degrees North latitude. The descending air blows from the northeast to the southwest, back toward the equator. Similarly, in the Southern Hemisphere, these winds blow from the southeast toward the northwest and descend near 30 degrees South latitude. If the direction of rotation changes the pattern will be a mirror image of the original, hence the Trade Wind in the southern hemisphere will blow from South West towards the equator.

Which states in India are most affected by cyclones?
This question has multiple answers.

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

  1. Maharashtra

  2. Odisha

  3. Andhra Pradesh

  4. Telangana

Show answer
Correct Option: B,C,D
Explanation:

Four States (Andhra Pradesh, Odisha, Tamil Nadu and West Bengal) and one UT (Pondicherry) on the East Coast and One State (Gujarat) on the West Coast are more vulnerable to cyclone disasters.

The climate and weather conditions in India are governed by ______________.

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

  1. Pressure and surface winds

  2. Coriolis force and uppper air circulation

  3. Western cyclonic disturbances

  4. All the above

Show answer
Correct Option: D

Which natural calamity has affected India the most?

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

  1. Floods

  2. Earthquakes

  3. Cyclones

  4. Tsunamis

Show answer
Correct Option: C
Explanation:
Of the given options, the destruction caused by cyclones has affected India the most. They mostly strike the eastern coast of India. Recently, the frequency of the tropical cyclones which hit the eastern coast of India has risen. It can be attributed to Global Warming.
Trees, buildings etc collapse due to strong wind killing many people.
Storm surges are Strong winds push water towards a shore. The low-pressure area in the eye lifts the water surface in the center which as high as 3 to 12 m. It appears like a water wall moving towards a shore. As a result, water enters the low coastal areas and causes severe loss of life and property.
Cyclones may also cause prolonged heavy rains. This may lead to floods causing heavy losses. Water becomes contaminated and people may suffer from various water-borne diseases.
It may block the rail and road transport system as well as telephones and other communication systems.

How many zones have been identified as the most affected by cyclones?

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

  1. 3

  2. 4

  3. 5

  4. 6

Show answer
Correct Option: D
Explanation:
Although tropical cyclones can occur in many parts of the world, about 75% of all tropical cyclones form in the Northern Hemisphere. The western North Pacific Ocean has the greatest number of storms per year. There are also areas that are not affected by tropical cyclones, such as the South Atlantic where the ocean is too cool.

The following is a listing of specific areas of the world which are affected by tropical cyclones:

Tropical North Atlantic, Caribbean Sea, and Gulf of Mexico.
Eastern North Pacific (from the west coast of Mexico to 180 degrees West)
Western North Pacific (Philippine Islands and the South China Sea extending to 180 degrees East)
Bay of Bengal
Arabian Sea
South Indian Ocean (off the coast of Madagascar extending eastward to the central Indian Ocean)
Northwest coast of Australia extending westward to the central Indian Ocean
South Pacific Ocean from eastern Australia to about 140 degrees West.

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

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

  1. Monsoon

  2. Polar winds

  3. Westerlies

  4. Trade winds

Show answer
Correct Option: D
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. 

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

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

  1. Cyclones

  2. Tsunamis

  3. Hurricanes

  4. Earthquake

Show answer
Correct Option: A
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.

Atmospheric pressure in the center of a tropical cyclone is :

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

  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

Show answer
Correct Option: B
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.