Insolation, Atmospheric Pressure, Winds & Humidity: 16 MCQs

All 16 multiple-choice questions from this kit, free and with no sign-up.

Full kit · everything Flashcards · 20 Quick Revision · 15

Warm-up · 6 questions

Q1. What does the term 'insolation' refer to?

Beginner

A Incoming solar radiation received by Earth

B The heat trapped inside Earth's core

C The pressure exerted by the atmosphere

D The reflection of sunlight by clouds

Answers and explanations are in the Veda app.

Q2. Why is insolation strongest near the equator?

Beginner

A The equator is physically closer to the Sun

B Sunlight strikes almost vertically, concentrating energy

C The equator has more water to absorb heat

D The atmosphere is thicker at the equator

Answers and explanations are in the Veda app.

Q3. What is the standard atmospheric pressure at sea level?

Beginner

A About 1013 millibars

B About 100 millibars

C About 500 millibars

D About 2000 millibars

Answers and explanations are in the Veda app.

Q4. Wind always flows from:

Beginner

A Low pressure to high pressure

B High pressure to low pressure

C The equator to the poles only

D Cold regions to warm regions only

Answers and explanations are in the Veda app.

Q5. Which of these best describes the doldrums and horse latitudes?

Beginner

A Both are regions of permanent rainfall

B Both are strong wind belts near the poles

C The doldrums are stormy and the horse latitudes are calm

D Both are calm zones — the doldrums at the equatorial low and horse latitudes at the subtropical highs

Answers and explanations are in the Veda app.

Q6. Standard atmospheric pressure at sea level is approximately 1013 millibars (101.3 kPa).

Beginner

A True

B False

Answers and explanations are in the Veda app.

Building up · 5 questions

Q7. Which statement correctly describes the Coriolis effect?

Intermediate

A It reverses the direction of the trade winds each season

B It pushes air straight from high to low pressure

C It deflects moving air left in the NH and right in the SH

D It deflects moving air right in the NH and left in the SH

Answers and explanations are in the Veda app.

Q8. A weather station reports that relative humidity is 90% but no rain has fallen all day. What best explains this?

Intermediate

A Relative humidity above 80% always produces rain

B The air has not been forced to rise and cool, so condensation has not occurred

C The dew point must be higher than the air temperature

D Absolute humidity must be zero in this case

Answers and explanations are in the Veda app.

Q9. Why do mountaineers need oxygen cylinders at high altitude?

Intermediate

A Cold air at altitude cannot be breathed

B The Coriolis effect thins the air at height

C The percentage of oxygen in air falls sharply with height

D Atmospheric pressure decreases with altitude, so less air is available

Answers and explanations are in the Veda app.

Q10. Trade winds blow from the subtropical highs toward the equatorial low. In which direction are they deflected in the Northern Hemisphere?

Intermediate

A Southeast trades

B Southwest trades

C Northwest trades

D Northeast trades

Answers and explanations are in the Veda app.

Q11. Which of the following best explains why the tropics receive far more annual insolation than the poles?

Intermediate

A The Sun's angle stays high year-round near the equator, while it swings widely at high latitudes

B The poles have more cloud cover throughout the year

C The poles are farther from the Sun in every season

D The equator rotates faster than the poles

Answers and explanations are in the Veda app.

Topper level · 5 questions

Q12. A coastal town has warm, moist air that is forced to rise over a mountain range. What is most likely on the windward side?

Advanced

A Persistent high pressure and clear skies

B No rainfall because humidity alone does not cause rain

C A dry rain shadow because the air loses moisture while descending

D Heavy orographic rainfall as the rising air cools and condenses

Answers and explanations are in the Veda app.

Q13. Assertion (A): The Indian monsoon brings heavy summer rainfall. Reason (R): Summer insolation heats the land, creating low pressure that draws in moist ocean air.

Advanced

A Both A and R are true, but R does not explain A

B A is true but R is false

C Both A and R are true, and R correctly explains A

D A is false but R is true

Answers and explanations are in the Veda app.

Q14. Which statement about absolute and relative humidity is correct?

Advanced

A Absolute humidity is mass per volume; relative humidity is a percentage of capacity

B Both are measured as percentages of saturation

C Both remain constant as temperature changes

D Absolute humidity is a percentage; relative humidity is mass per volume

Answers and explanations are in the Veda app.

Q15. Which of the following is the best example of the Coriolis effect shaping a global wind belt?

Advanced

A Pressure falling as altitude increases

B Westerlies curving from the southwest in the Northern Hemisphere

C Air rising over the equator because it is warmed

D Dew forming on grass on a cool morning

Answers and explanations are in the Veda app.

Q16. Two places have the same absolute humidity, but place X is warmer than place Y. What can you conclude about relative humidity?

Advanced

A Relative humidity cannot be compared without knowing the wind speed

B Place X has higher relative humidity because warm air holds more vapour

C Place X has lower relative humidity because warm air holds more vapour

D Both places have identical relative humidity

Answers and explanations are in the Veda app.

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