Geography · Environmental Studies

Climate, Weather, and Geography

2,194 Questions

Climate, weather, and geography examine temperature variations, wind patterns, atmospheric hazards, and global climate zones. This hub addresses climographs, thunderstorm triggers, and regional climate descriptors. These concepts are essential for UPSC, SSC, and RRB general studies and geography exams.

Temperature variationWind patternsClimate zonesDesert climateWeather events

Climate, Weather, and Geography Questions

Multiple choice physics air, winds and cyclones wind and rain example of some natural phenomena uneven heating of earth the concept of bernoulli's principle

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
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
 A change in direction of wind is however, caused by the rotation of the earth.
Multiple choice physics air, winds and cyclones wind and rain example of some natural phenomena uneven heating of earth the concept of bernoulli's principle

Which of the following is not true about the formation of winds due to uneven heating of land at Equator and Polar regions ?

  1. The winds blow from the $0-30^o$ latitudes, taking place of the warm air at the equator that has risen up, towards the equator and constitute the Polar winds.
  2. The cool air at the poles rushes in to take place of the warmer winds in the $60^o$ belt and constitute the Polar winds.

  3. The winds of the wind is not exactly in the North-South direction because of the rotation of the Earth.

  4. The pressure difference between the equatorial and polar regions leads to the formation of winds in the North-South direction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Formation of winds at the equator and polar region involves following few steps:
1. The warm air rises, and the cooler air from the regions in the 0–30 degrees latitude belt on either side of the equator moves in.
2.  At the poles, the air is colder than that at latitudes about 60 degrees. 
3.  The warm air at these latitudes rises up and the cold wind from the polar regions rushes in, to take its place
4.  A change in direction is, however, caused by the rotation of the earth.
Multiple choice physics air, winds and cyclones wind and rain example of some natural phenomena uneven heating of earth the concept of bernoulli's principle

What is the basis for the formation of winds due to heating of different areas on Earth ?

  1. The air in cold temperature regions gets cooled, expands and becomes more dense and rises up. It's place is taken by heavier air from adjacent regions.

  2. The air in cold temperature regions gets cooled up, expands and becomes less dense and rises up. It's place is taken by heavier air from adjacent regions.

  3. The air in high temperature regions gets heated up, expands and becomes less dense and rises up. It's place is taken by heavier air from adjacent regions.

  4. The air in high temperature regions gets heated up, contracts and becomes more dense and rises up. It's place is taken by heavier air from adjacent regions.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
In summer, near the equator the land warms up faster and most of the time the temperature of the land is higher than that of water in the oceans. The air over the land gets heated and rises. This causes the winds to flow from the oceans towards the land. And we know air expands on heating and and becomes less dense and therefore rises up.
Multiple choice physics air, winds and cyclones wind and rain example of some natural phenomena uneven heating of earth the concept of bernoulli's principle

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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
At the poles, the air is colder than that at latitudes about 60 degrees. The warm air at these latitudes rises up and the cold wind from the polar regions rushes in, to take its place.
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

Violent storm that originate over oceans in tropical areas and  move over to the coastal areas are called ________.

  1. tornadoes

  2. tropical cyclones

  3. thunderstorms

  4. extra tropical cyclones
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

These are called tropical cyclones. It originates in the Bay of Bengal in India and in many other parts of the world.  Whenever these tropical cyclone occur they cause great loss of life and property due to heavy rains on the eastern coastal regions of India.

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 Westerlies are cold winds that blow towards the poles.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

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.