These Atmospheric Circulation and Weather Systems Important Questions cover the most important MCQs, one-word questions, assertion and reason questions and descriptive questions from NCERT Class 11 Geography Chapter 9. The questions are prepared from NCERT concepts and important exam-oriented topics for quick revision and practice.
This page is useful for UPSC, SSC, PSC, Railway, CUET and Class 11 Geography preparation, helping students revise important concepts related to atmospheric pressure, winds, circulation systems, cyclones, anticyclones and weather phenomena.
Complete Study Kit
NCERT Geography Preparation
Enhance your preparation with detailed topic-wise notes, structured summaries, comprehensive question banks, and high-yield MCQs.
Multiple Choice Questions (MCQs)
These MCQs from Atmospheric Circulation and Weather Systems are designed for quick objective revision and competitive exam preparation. The questions cover important atmospheric circulation concepts, wind systems, pressure belts and weather systems discussed in the NCERT chapter.
MCQ 1
Atmospheric pressure is caused by:
A. Earth’s rotation only
B. Weight of air
C. Ocean currents only
D. Solar eclipses only
Answer: B. Weight of air | Page Reference: Page 76
MCQ 2
Atmospheric pressure decreases with:
A. Increase in temperature only
B. Increase in altitude
C. Increase in rainfall only
D. Increase in humidity only
Answer: B. Increase in altitude | Page Reference: Page 76
MCQ 3
The instrument used to measure atmospheric pressure is:
A. Hygrometer
B. Thermometer
C. Barometer
D. Anemometer
Answer: C. Barometer | Page Reference: Page 76
MCQ 4
Air moves from:
A. Low pressure to high pressure
B. High pressure to low pressure
C. Equator to poles only
D. Oceans to deserts only
Answer: B. High pressure to low pressure | Page Reference: Page 77
MCQ 5
The horizontal movement of air is called:
A. Convection
B. Radiation
C. Wind
D. Condensation
Answer: C. Wind | Page Reference: Page 77
MCQ 6
Which force deflects winds due to Earth’s rotation?
A. Frictional force
B. Gravitational force
C. Coriolis force
D. Centripetal force
Answer: C. Coriolis force | Page Reference: Page 77
MCQ 7
According to Ferrel’s Law, winds are deflected to the right in:
A. Southern Hemisphere
B. Northern Hemisphere
C. Equatorial region only
D. Polar region only
Answer: B. Northern Hemisphere | Page Reference: Page 77
MCQ 8
The trade winds blow from:
A. Equator to poles
B. Subtropical high pressure belts to equatorial low pressure belt
C. Polar regions to equator only
D. Westerlies to polar regions only
Answer: B. Subtropical high pressure belts to equatorial low pressure belt | Page Reference: Page 78
MCQ 9
The calm zone near the equator is known as:
A. Horse latitudes
B. Doldrums
C. Roaring forties
D. Polar front
Answer: B. Doldrums | Page Reference: Page 78
MCQ 10
Westerlies blow from:
A. East to west
B. West to east
C. Equator to poles
D. Poles to equator only
Answer: B. West to east | Page Reference: Page 78
MCQ 11
The Roaring Forties are associated with:
A. Trade winds
B. Polar winds
C. Westerlies
D. Monsoon winds
Answer: C. Westerlies | Page Reference: Page 78
MCQ 12
Polar easterlies originate from:
A. Equatorial low pressure belt
B. Polar high pressure belt
C. Subtropical high pressure belt
D. Temperate low pressure belt
Answer: B. Polar high pressure belt | Page Reference: Page 78
MCQ 13
Monsoon winds reverse direction mainly due to:
A. Ocean currents
B. Differential heating of land and water
C. Earthquakes
D. Volcanoes
Answer: B. Differential heating of land and water | Page Reference: Page 79
MCQ 14
Local winds develop due to:
A. Global pressure belts only
B. Local temperature and pressure differences
C. Ocean salinity only
D. Earth’s revolution only
Answer: B. Local temperature and pressure differences | Page Reference: Page 79
MCQ 15
A warm and dry local wind in Alps is called:
A. Chinook
B. Loo
C. Foehn
D. Mistral
Answer: C. Foehn | Page Reference: Page 79
MCQ 16
The hot and dry summer wind in northern India is called:
A. Chinook
B. Foehn
C. Loo
D. Blizzard
Answer: C. Loo | Page Reference: Page 79
MCQ 17
Cyclones are associated with:
A. High pressure
B. Low pressure
C. Calm conditions only
D. Anticyclonic conditions only
Answer: B. Low pressure | Page Reference: Page 80
MCQ 18
Air in a cyclone moves:
A. Downward and outward
B. Upward and inward
C. Horizontally only
D. Downward only
Answer: B. Upward and inward | Page Reference: Page 80
MCQ 19
Anticyclones are generally associated with:
A. Cloudy weather
B. Heavy rainfall
C. Clear skies
D. Thunderstorms only
Answer: C. Clear skies | Page Reference: Page 80
MCQ 20
Tropical cyclones derive energy mainly from:
A. Cold ocean currents
B. Warm ocean waters
C. Mountains only
D. Polar winds only
Answer: B. Warm ocean waters | Page Reference: Page 81
MCQ 21
Temperate cyclones generally form along:
A. Equatorial region
B. Polar front
C. Tropical deserts only
D. Mountain tops only
Answer: B. Polar front | Page Reference: Page 81
MCQ 22
The eye of a cyclone is characterized by:
A. Maximum rainfall
B. Calm conditions
C. Strongest winds
D. Snowfall only
Answer: B. Calm conditions | Page Reference: Page 81
MCQ 23
Which force controls wind speed gradient?
A. Gravitational force
B. Pressure gradient force
C. Magnetic force
D. Friction only
Answer: B. Pressure gradient force | Page Reference: Page 77
MCQ 24
Horse latitudes are regions of:
A. Low pressure
B. Calm winds and high pressure
C. Heavy rainfall
D. Cyclonic storms only
Answer: B. Calm winds and high pressure | Page Reference: Page 78
MCQ 25
Cyclonic circulation is clockwise in:
A. Northern Hemisphere
B. Southern Hemisphere
C. Equatorial region only
D. Arctic region only
Answer: B. Southern Hemisphere | Page Reference: Page 80
MCQ 26
Which wind belt lies between 30° and 60° latitude?
A. Trade winds
B. Westerlies
C. Polar easterlies
D. Monsoon winds
Answer: B. Westerlies | Page Reference: Page 78
MCQ 27
The pressure gradient force becomes stronger when:
A. Pressure difference decreases
B. Pressure difference increases
C. Temperature decreases only
D. Humidity decreases only
Answer: B. Pressure difference increases | Page Reference: Page 77
MCQ 28
Which condition is necessary for tropical cyclone formation?
A. Cold oceans
B. Warm and moist air
C. High latitude location
D. Dry continental climate
Answer: B. Warm and moist air | Page Reference: Page 81
MCQ 29
The descending air in anticyclones causes:
A. Cloud formation
B. Clear weather
C. Heavy rainfall
D. Thunderstorms only
Answer: B. Clear weather | Page Reference: Page 80
MCQ 30
Planetary winds are also known as:
A. Local winds
B. Permanent winds
C. Seasonal winds
D. Variable winds
Answer: B. Permanent winds | Page Reference: Page 78
One-Word / Very Short Answer Questions
These one-word and factual questions help students quickly revise important atmospheric circulation concepts, wind systems and weather phenomena from the chapter. The section is especially useful for UPSC, SSC, PSC, Railway, CUET and other objective examinations.
- What measures atmospheric pressure?
Answer: Barometer | Page Reference: Page 76 - What is horizontal movement of air called?
Answer: Wind | Page Reference: Page 77 - Which force deflects winds?
Answer: Coriolis force | Page Reference: Page 77 - Which law explains wind deflection due to Earth’s rotation?
Answer: Ferrel’s Law | Page Reference: Page 77 - Which calm equatorial zone is associated with rising air?
Answer: Doldrums | Page Reference: Page 78 - Which winds blow from subtropical highs to equatorial lows?
Answer: Trade winds | Page Reference: Page 78 - Which winds dominate between 30° and 60° latitudes?
Answer: Westerlies | Page Reference: Page 78 - Which winds originate from polar high pressure belts?
Answer: Polar easterlies | Page Reference: Page 78 - What are permanent winds also called?
Answer: Planetary winds | Page Reference: Page 78 - Which hot dry wind blows in northern India?
Answer: Loo | Page Reference: Page 79 - Which warm dry wind blows in Alps?
Answer: Foehn | Page Reference: Page 79 - Which weather system is associated with low pressure?
Answer: Cyclone | Page Reference: Page 80 - Which weather system is associated with high pressure?
Answer: Anticyclone | Page Reference: Page 80 - What is calm centre of cyclone called?
Answer: Eye | Page Reference: Page 81 - Which cyclones form along polar front?
Answer: Temperate cyclones | Page Reference: Page 81 - Which cyclones derive energy from warm oceans?
Answer: Tropical cyclones | Page Reference: Page 81 - Which force drives air from high pressure to low pressure?
Answer: Pressure gradient force | Page Reference: Page 77 - Which pressure belt is found near 30° latitudes?
Answer: Subtropical high pressure belt | Page Reference: Page 78 - Which pressure system generally causes clear weather?
Answer: Anticyclone | Page Reference: Page 80 - Which winds are strongest in Southern Hemisphere westerlies?
Answer: Roaring Forties | Page Reference: Page 78
Assertion and Reason Questions
These assertion and reason questions from Atmospheric Circulation and Weather Systems help students develop conceptual clarity and analytical understanding of atmospheric pressure, winds and weather systems. They are highly useful for board exams and competitive examinations.
Question 1
Assertion (A): Atmospheric pressure decreases with altitude.
Reason (R): Density of air decreases with increasing height.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 76
Question 2
Assertion (A): Winds blow from high pressure to low pressure regions.
Reason (R): Pressure gradient force causes movement of air.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 77
Question 3
Assertion (A): Winds are deflected due to Earth’s rotation.
Reason (R): Coriolis force affects direction of moving air.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 77
Question 4
Assertion (A): Doldrums experience calm conditions.
Reason (R): Air rises vertically in equatorial low pressure belt.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 78
Question 5
Assertion (A): Westerlies blow from west to east.
Reason (R): Coriolis force deflects winds in temperate regions.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 78
Question 6
Assertion (A): Monsoon winds reverse direction seasonally.
Reason (R): Differential heating of land and water changes pressure conditions.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 79
Question 7
Assertion (A): Cyclones are associated with low pressure.
Reason (R): Air converges and rises upward in cyclonic systems.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 80
Question 8
Assertion (A): Anticyclones generally produce clear weather.
Reason (R): Descending air prevents cloud formation.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 80
Question 9
Assertion (A): Tropical cyclones derive energy from warm oceans.
Reason (R): Warm oceans provide moisture and latent heat.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 81
Question 10
Assertion (A): Temperate cyclones form along polar fronts.
Reason (R): Warm and cold air masses interact strongly in these regions.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 81
Question 11
Assertion (A): Pressure gradient controls wind speed.
Reason (R): Greater pressure difference creates faster-moving air.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 77
Question 12
Assertion (A): Horse latitudes experience calm conditions.
Reason (R): Descending air dominates subtropical high pressure belts.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 78
Question 13
Assertion (A): Cyclonic winds rotate differently in Northern and Southern Hemispheres.
Reason (R): Coriolis force acts differently in both hemispheres.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 80
Question 14
Assertion (A): Local winds develop due to local pressure differences.
Reason (R): Unequal heating creates local atmospheric circulation.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 79
Question 15
Assertion (A): Warm air generally rises upward.
Reason (R): Warm air becomes lighter after expansion.
Options:
A. Both A and R are true and R is the correct explanation
B. Both A and R are true but R is not the correct explanation
C. A is true but R is false
D. A is false but R is true
Correct Option: A | Page Reference: Page 77–79
Important Exam-Based Concept Questions
These important descriptive and analytical questions from Atmospheric Circulation and Weather Systems are useful for board examinations and competitive exams. The questions focus on conceptual understanding, wind systems and weather phenomena.
| # | Question Description | Page Reference |
|---|---|---|
| 1 | Explain the meaning and importance of atmospheric pressure. | Page 76 |
| 2 | Discuss the factors affecting atmospheric pressure distribution. | Page 76 |
| 3 | Explain the concept of pressure gradient force. | Page 77 |
| 4 | Discuss the role of Coriolis force in atmospheric circulation. | Page 77 |
| 5 | Explain Ferrel’s Law with suitable examples. | Page 77 |
| 6 | Describe the planetary wind system of Earth. | Page 78 |
| 7 | Explain the characteristics of trade winds. | Page 78 |
| 8 | Discuss the importance of westerlies in global circulation. | Page 78 |
| 9 | Explain the formation and significance of doldrums. | Page 78 |
| 10 | Discuss the characteristics of polar easterlies. | Page 78 |
| 11 | Explain the causes and mechanism of monsoon winds. | Page 79 |
| 12 | Describe important local winds of the world. | Page 79 |
| 13 | Differentiate between cyclones and anticyclones. | Page 80 |
| 14 | Explain the formation and characteristics of tropical cyclones. | Page 81 |
| 15 | Discuss the characteristics of temperate cyclones. | Page 81 |
| 16 | Explain the structure of a cyclone with suitable description. | Page 80–81 |
| 17 | Discuss the weather conditions associated with anticyclones. | Page 80 |
| 18 | Explain the role of atmospheric circulation in weather formation. | Page 76–81 |
| 19 | Differentiate between permanent winds and local winds. | Page 78–79 |
| 20 | Discuss how atmospheric circulation influences global climate patterns. | Page 76–81 |
Leave a Reply