Distribution of Oceans and Continents Important Questions
These Distribution of Oceans and Continents Important Questions cover important NCERT concepts related to continental drift, plate tectonics, sea-floor spreading, tectonic boundaries, earthquakes and volcanic activities.
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 30–37
Table of Contents
Multiple Choice Questions (MCQs)
These MCQs from Distribution of Oceans and Continents help students revise important concepts related to continental movement, tectonic plates, oceanic features and geological activities.
MCQ 1
Who proposed the Continental Drift Theory?
- A. Newton
- B. Alfred Wegener
- C. Darwin
- D. Laplace
Page Reference: Page 30
MCQ 2
According to Wegener, all continents were once part of:
- A. Gondwanaland
- B. Laurasia
- C. Pangaea
- D. Panthalassa
Page Reference: Page 30
MCQ 3
The vast ocean surrounding Pangaea was called:
- A. Pacific Ocean
- B. Panthalassa
- C. Tethys Sea
- D. Atlantic Ocean
Page Reference: Page 30
MCQ 4
The northern part of Pangaea was known as:
- A. Gondwanaland
- B. Angaraland
- C. Laurasia
- D. Panthalassa
Page Reference: Page 30
MCQ 5
The southern part of Pangaea was called:
- A. Gondwanaland
- B. Eurasia
- C. Tethys
- D. Laurasia
Page Reference: Page 30
MCQ 6
Which sea separated Laurasia and Gondwanaland?
- A. Arabian Sea
- B. Mediterranean Sea
- C. Tethys Sea
- D. Black Sea
Page Reference: Page 30
MCQ 7
Which evidence supports continental drift?
- A. Matching coastlines
- B. Similar fossils across continents
- C. Geological similarities
- D. All of these
Page Reference: Page 31
MCQ 8
Which theory explains the movement of lithospheric plates?
- A. Nebular Theory
- B. Plate Tectonic Theory
- C. Big Bang Theory
- D. Solar Theory
Page Reference: Page 34
MCQ 9
The lithosphere is divided into:
- A. Ocean basins
- B. Plates
- C. Valleys
- D. Continents only
Page Reference: Page 34
MCQ 10
The convection currents responsible for plate movement occur in the:
- A. Crust
- B. Core
- C. Asthenosphere
- D. Biosphere
Page Reference: Page 35
MCQ 11
Divergent boundaries are associated with:
- A. Collision of plates
- B. Plates moving apart
- C. Plates sliding past each other
- D. Mountain folding only
Page Reference: Page 35
MCQ 12
Convergent boundaries are formed when:
- A. Plates move apart
- B. Plates collide
- C. Plates remain stationary
- D. Volcanoes stop erupting
Page Reference: Page 36
MCQ 13
Transform boundaries involve:
- A. Plate collision
- B. Plate separation
- C. Plates sliding past each other
- D. Ocean formation only
Page Reference: Page 36
MCQ 14
Mid-oceanic ridges are formed mainly at:
- A. Convergent boundaries
- B. Divergent boundaries
- C. Transform boundaries
- D. Mountain belts only
Page Reference: Page 35
MCQ 15
The Ring of Fire is associated with:
- A. Earthquake and volcanic activity
- B. Desert formation
- C. River deposition
- D. Glacier movement
Page Reference: Page 37
MCQ 16
Which ocean is expanding due to sea-floor spreading?
- A. Indian Ocean
- B. Arctic Ocean
- C. Atlantic Ocean
- D. Southern Ocean
Page Reference: Page 35
MCQ 17
Sea-floor spreading theory was proposed by:
- A. Alfred Wegener
- B. Harry Hess
- C. Darwin
- D. Hubble
Page Reference: Page 33
MCQ 18
The San Andreas Fault is an example of:
- A. Divergent boundary
- B. Convergent boundary
- C. Transform boundary
- D. Rift valley
Page Reference: Page 36
MCQ 19
Most earthquakes occur along:
- A. River valleys
- B. Plate boundaries
- C. Plains only
- D. Deserts only
Page Reference: Page 37
MCQ 20
Fold mountains are commonly formed at:
- A. Divergent boundaries
- B. Convergent boundaries
- C. Transform boundaries
- D. Ocean trenches only
Page Reference: Page 36
One-Word / Very Short Answer Questions
| Question | Answer | Page Reference |
|---|---|---|
| Who proposed Continental Drift Theory? | Alfred Wegener | Page 30 |
| What was the supercontinent called? | Pangaea | Page 30 |
| What was the surrounding ocean of Pangaea called? | Panthalassa | Page 30 |
| What was the northern part of Pangaea called? | Laurasia | Page 30 |
| What was the southern part of Pangaea called? | Gondwanaland | Page 30 |
| Which sea separated Laurasia and Gondwanaland? | Tethys Sea | Page 30 |
| Which theory explains movement of lithospheric plates? | Plate Tectonic Theory | Page 34 |
| Which layer contains convection currents? | Asthenosphere | Page 35 |
| Which boundary forms when plates move apart? | Divergent boundary | Page 35 |
| Which boundary forms when plates collide? | Convergent boundary | Page 36 |
| Which boundary involves plates sliding past each other? | Transform boundary | Page 36 |
| Who proposed Sea-floor Spreading Theory? | Harry Hess | Page 33 |
| Which ocean is expanding due to sea-floor spreading? | Atlantic Ocean | Page 35 |
| Which zone is famous for earthquakes and volcanoes around Pacific Ocean? | Ring of Fire | Page 37 |
| Where do most earthquakes occur? | Plate boundaries | Page 37 |
Assertion and Reason Questions
Question 1
Assertion (A): Continents were once joined together as a supercontinent.
Reason (R): Wegener proposed the concept of Pangaea in Continental Drift Theory.
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
Page Reference: Page 30
Question 2
Assertion (A): Similar fossils are found on distant continents.
Reason (R): Continents were once connected in the geological past.
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
Page Reference: Page 31
Question 3
Assertion (A): Sea-floor spreading causes oceans to widen.
Reason (R): New oceanic crust forms at mid-oceanic ridges.
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
Page Reference: Page 33–35
Question 4
Assertion (A): Lithospheric plates move continuously.
Reason (R): Convection currents in asthenosphere drive plate movement.
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
Page Reference: Page 35
Question 5
Assertion (A): Fold mountains are formed at convergent boundaries.
Reason (R): Plates collide and compress rock layers.
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
Page Reference: Page 36
Question 6
Assertion (A): Transform boundaries are associated with earthquakes.
Reason (R): Plates slide horizontally past each other causing friction.
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
Page Reference: Page 36–37
Question 7
Assertion (A): Most volcanoes occur along plate boundaries.
Reason (R): Tectonic plate interactions generate magma movement.
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
Page Reference: Page 37
Important Exam-Based Concept Questions
Question 1
Explain the Continental Drift Theory proposed by Alfred Wegener.
Page Reference: Page 30
Question 2
Discuss the evidences supporting Continental Drift Theory.
Page Reference: Page 31
Question 3
Explain the concept of Pangaea and Panthalassa.
Page Reference: Page 30
Question 4
Describe the major criticisms of Continental Drift Theory.
Page Reference: Page 32
Question 5
Explain the Sea-floor Spreading Theory.
Page Reference: Page 33
Question 6
Discuss the Plate Tectonic Theory and its significance.
Page Reference: Page 34
Question 7
Explain the role of convection currents in plate movement.
Page Reference: Page 35
Question 8
Differentiate between divergent, convergent and transform boundaries.
Page Reference: Page 35–36
Question 9
Explain the formation of fold mountains due to tectonic activity.
Page Reference: Page 36
Question 10
Discuss the causes of earthquakes and volcanic activities.
Page Reference: Page 37
Question 11
Explain why most earthquakes occur near plate boundaries.
Page Reference: Page 37
Question 12
Describe the significance of mid-oceanic ridges in sea-floor spreading.
Page Reference: Page 35
Question 13
Explain the Ring of Fire and its importance.
Page Reference: Page 37
Question 14
Discuss the contribution of Plate Tectonic Theory in modern geology.
Page Reference: Page 34–37
Question 15
Explain how tectonic movements influence the distribution of continents and oceans.
Page Reference: Page 34–37
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