World Climate and Climate Change Important Questions

World Climate and Climate Change Important Questions

These World Climate and Climate Change Important Questions cover important NCERT concepts related to climatic regions, climatic classification, vegetation patterns, greenhouse effect and climate change.

The chapter-wise questions include MCQs, one-word questions, assertion and reason questions and analytical descriptive questions useful for UPSC, SSC, Railways, State PSC, CUET, CBSE board exams and competitive examinations.

NCERT Page Coverage: Page 92–102

Multiple Choice Questions (MCQs)

These MCQs from World Climate and Climate Change help students revise important concepts related to climatic regions, vegetation and global climate change.

MCQ 1

Climate refers to:

  • A. Daily weather conditions
  • B. Long-term average weather conditions
  • C. Sudden storms only
  • D. Seasonal rainfall only
Answer: B. Long-term average weather conditions

Page Reference: Page 92

MCQ 2

Which factor strongly influences climate?

  • A. Latitude
  • B. Altitude
  • C. Distance from sea
  • D. All of these
Answer: D. All of these

Page Reference: Page 92

MCQ 3

The Köppen classification is mainly based on:

  • A. Population density
  • B. Temperature and rainfall
  • C. Soil types only
  • D. Vegetation only
Answer: B. Temperature and rainfall

Page Reference: Page 93

MCQ 4

Equatorial climate is characterized by:

  • A. Extreme cold
  • B. High temperature and heavy rainfall throughout the year
  • C. Dry winters only
  • D. Snowfall throughout the year
Answer: B. High temperature and heavy rainfall throughout the year

Page Reference: Page 94

MCQ 5

The equatorial climate region lies mainly between:

  • A. 0°–10° latitude
  • B. 20°–30° latitude
  • C. 40°–60° latitude
  • D. 60°–90° latitude
Answer: A. 0°–10° latitude

Page Reference: Page 94

MCQ 6

The natural vegetation of equatorial climate is:

  • A. Tundra
  • B. Coniferous forest
  • C. Tropical evergreen forest
  • D. Grasslands
Answer: C. Tropical evergreen forest

Page Reference: Page 94

MCQ 7

The tropical monsoon climate is mainly associated with:

  • A. Seasonal reversal of winds
  • B. Constant polar winds
  • C. Permanent westerlies
  • D. Ocean salinity only
Answer: A. Seasonal reversal of winds

Page Reference: Page 95

MCQ 8

Savanna climate is mainly associated with:

  • A. Dense evergreen forests
  • B. Grasslands with scattered trees
  • C. Desert vegetation
  • D. Tundra vegetation
Answer: B. Grasslands with scattered trees

Page Reference: Page 95

MCQ 9

The hot desert climate is mainly found around:

  • A. Equator
  • B. Subtropical high pressure belts
  • C. Polar regions
  • D. Temperate cyclones only
Answer: B. Subtropical high pressure belts

Page Reference: Page 96

MCQ 10

Which is the largest hot desert in the world?

  • A. Thar Desert
  • B. Sahara Desert
  • C. Gobi Desert
  • D. Atacama Desert
Answer: B. Sahara Desert

Page Reference: Page 96

MCQ 11

Mediterranean climate is characterized by:

  • A. Dry summers and wet winters
  • B. Wet summers and dry winters
  • C. Heavy snowfall throughout year
  • D. Uniform rainfall throughout year
Answer: A. Dry summers and wet winters

Page Reference: Page 97

MCQ 12

Mediterranean climate is suitable for cultivation of:

  • A. Rice only
  • B. Citrus fruits and grapes
  • C. Coniferous trees only
  • D. Tundra crops only
Answer: B. Citrus fruits and grapes

Page Reference: Page 97

MCQ 13

Temperate grasslands are known as Prairies in:

  • A. South America
  • B. Africa
  • C. North America
  • D. Australia
Answer: C. North America

Page Reference: Page 98

MCQ 14

The coniferous forests are mainly found in:

  • A. Equatorial regions
  • B. Mediterranean regions
  • C. Cool temperate regions
  • D. Desert regions
Answer: C. Cool temperate regions

Page Reference: Page 99

MCQ 15

Taiga vegetation mainly consists of:

  • A. Deciduous trees
  • B. Coniferous trees
  • C. Grasslands
  • D. Thorny shrubs
Answer: B. Coniferous trees

Page Reference: Page 99

MCQ 16

Tundra climate is characterized by:

  • A. High temperatures
  • B. Extremely cold conditions
  • C. Heavy rainfall throughout year
  • D. Dry tropical conditions
Answer: B. Extremely cold conditions

Page Reference: Page 100

MCQ 17

The treeless vegetation of tundra consists mainly of:

  • A. Mosses and lichens
  • B. Tropical trees
  • C. Thorny bushes
  • D. Mangroves
Answer: A. Mosses and lichens

Page Reference: Page 100

MCQ 18

Global warming is mainly caused by increase in:

  • A. Oxygen
  • B. Greenhouse gases
  • C. Nitrogen only
  • D. Dust particles only
Answer: B. Greenhouse gases

Page Reference: Page 101

MCQ 19

Which gas contributes most to greenhouse effect?

  • A. Oxygen
  • B. Nitrogen
  • C. Carbon dioxide
  • D. Helium
Answer: C. Carbon dioxide

Page Reference: Page 101

MCQ 20

The gradual increase in Earth’s temperature is called:

  • A. Ozone depletion
  • B. Global warming
  • C. Weathering
  • D. Desertification only
Answer: B. Global warming

Page Reference: Page 101

One-Word / Very Short Answer Questions

Question Answer Page Reference
What is long-term average weather called? Climate Page 92
Which climatic classification is based on temperature and rainfall? Köppen classification Page 93
Which climate has rainfall throughout the year? Equatorial climate Page 94
Which vegetation is found in equatorial climate? Tropical evergreen forest Page 94
Which climate is associated with seasonal wind reversal? Monsoon climate Page 95
Which vegetation is typical of savanna climate? Grasslands Page 95
Which pressure belt is associated with hot deserts? Subtropical high pressure belt Page 96
Which is the world’s largest hot desert? Sahara Desert Page 96
Which climate has dry summers and wet winters? Mediterranean climate Page 97
Which crops are important in Mediterranean climate? Citrus fruits and grapes Page 97
What are temperate grasslands called in North America? Prairies Page 98
Which forests dominate cool temperate regions? Coniferous forests Page 99
Which vegetation is found in tundra climate? Mosses and lichens Page 100
What is gradual rise in Earth’s temperature called? Global warming Page 101
Which gas contributes most to greenhouse effect? Carbon dioxide Page 101
Which international agreement deals with climate change? Kyoto Protocol Page 102
Which climate experiences severe winters? Tundra climate Page 100
Which climate has least annual temperature variation? Equatorial climate Page 94
Which human activity increases greenhouse gases significantly? Fossil fuel burning Page 101
Which environmental issue causes sea-level rise? Global warming Page 101

Assertion and Reason Questions

Question 1

Assertion (A): Climate refers to long-term weather conditions.

Reason (R): Climate is studied using atmospheric observations over many years.

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 92

Question 2

Assertion (A): Equatorial regions receive heavy rainfall throughout the year.

Reason (R): Strong convectional activity occurs in equatorial 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 94

Question 3

Assertion (A): Equatorial climate experiences very little annual temperature variation.

Reason (R): Sun’s rays remain nearly vertical throughout the year.

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 94

Question 4

Assertion (A): Hot deserts are mainly located near subtropical high pressure belts.

Reason (R): Descending dry air prevents cloud formation and rainfall.

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 96

Question 5

Assertion (A): Mediterranean climate receives winter rainfall.

Reason (R): Westerlies influence these regions during winter season.

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 97

Question 6

Assertion (A): Tundra regions are treeless.

Reason (R): Extremely low temperatures restrict tree growth.

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 100

Question 7

Assertion (A): Global warming is linked to greenhouse gases.

Reason (R): Greenhouse gases trap outgoing terrestrial radiation.

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 101

Question 8

Assertion (A): Carbon dioxide concentration has increased due to human activities.

Reason (R): Burning fossil fuels releases carbon dioxide into atmosphere.

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 101

Question 9

Assertion (A): Deforestation contributes to climate change.

Reason (R): Forests absorb carbon dioxide from atmosphere.

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 101

Question 10

Assertion (A): Climate change can cause sea-level rise.

Reason (R): Global warming leads to melting of glaciers and polar ice.

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 101

Important Exam-Based Concept Questions

Question 1

Explain the meaning and elements of climate.

Page Reference: Page 92

Question 2

Discuss the major factors affecting climate.

Page Reference: Page 92

Question 3

Explain the basis of Köppen’s climatic classification.

Page Reference: Page 93

Question 4

Describe the characteristics of equatorial climate.

Page Reference: Page 94

Question 5

Explain the natural vegetation and human activities in equatorial regions.

Page Reference: Page 94

Question 6

Discuss the characteristics of tropical monsoon climate.

Page Reference: Page 95

Question 7

Explain the climatic and vegetation characteristics of savanna regions.

Page Reference: Page 95

Question 8

Describe the features of hot desert climate.

Page Reference: Page 96

Question 9

Explain why deserts receive very little rainfall.

Page Reference: Page 96

Question 10

Discuss the characteristics of Mediterranean climate.

Page Reference: Page 97

Question 11

Explain the importance of Mediterranean climate for horticulture.

Page Reference: Page 97

Question 12

Describe the climatic characteristics of temperate grasslands.

Page Reference: Page 98

Question 13

Explain the characteristics and importance of coniferous forests.

Page Reference: Page 99

Question 14

Discuss the climatic conditions of tundra regions.

Page Reference: Page 100

Question 15

Explain the concept and causes of global warming.

Page Reference: Page 101

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