Q: Answer

(B) Shifting of continents Explanation: Plate Tectonic Theory proposes that Earth's continents move over time due to the motion of tectonic plates. This movement is known as continental drift.

Q: Answer

(B) 7 Explanation: Earth's lithosphere is divided into seven major tectonic plates, such as the Pacific Plate, the Eurasian Plate, and the African Plate.

Q: Answer

(B) Divergent boundary Explanation: A divergent boundary occurs when two tectonic plates move away from each other. It leads to the creation of new crust, typically through volcanic activity, as magma rises to fill the gap.

Q: Answer

(A) Convergent boundary Explanation: A convergent boundary occurs when two tectonic plates collide. This collision can lead to the uplifting of crustal material, creating mountain ranges.

Q: Answer

(B) Plate subduction Explanation: Plate subduction occurs when one tectonic plate is forced beneath another, and it often leads to intense seismic activity and the formation of earthquakes.

Q: Answer

(D) Subduction boundary Explanation: Subduction boundaries are where one tectonic plate moves under another, forming deep ocean trenches in the process.

Q: Answer

(D) Alfred Wegener Explanation: Alfred Wegener proposed the theory of continental drift in the early 20th century, suggesting that continents were once connected and have since drifted apart.

Q: Answer

(B) Rift valleys Explanation: At divergent boundaries on land, rift valleys are formed as the crust stretches and pulls apart.

Q: Answer

(D) Transform faulting Explanation: Transform faulting occurs when two tectonic plates slide horizontally past each other along a transform boundary.

Q: Answer

(D) Subduction boundary Explanation: Subduction boundaries often result in the formation of volcanic island arcs due to the melting of the subducted plate and subsequent volcanic activity.

Question 1

Answer

Accepted Answer

(B) Shifting of continents
Explanation: Plate Tectonic Theory proposes that Earth's continents move over time due to the motion of tectonic plates. This movement is known as continental drift.

Question 2

Answer

Accepted Answer

(B) 7
Explanation: Earth's lithosphere is divided into seven major tectonic plates, such as the Pacific Plate, the Eurasian Plate, and the African Plate.

Question 3

Answer

Accepted Answer

(B) Divergent boundary
Explanation: A divergent boundary occurs when two tectonic plates move away from each other. It leads to the creation of new crust, typically through volcanic activity, as magma rises to fill the gap.

Question 4

Answer

Accepted Answer

(A) Convergent boundary
Explanation: A convergent boundary occurs when two tectonic plates collide. This collision can lead to the uplifting of crustal material, creating mountain ranges.

Question 5

Answer

Accepted Answer

(B) Plate subduction
Explanation: Plate subduction occurs when one tectonic plate is forced beneath another, and it often leads to intense seismic activity and the formation of earthquakes.

Question 6

Answer

Accepted Answer

(D) Subduction boundary
Explanation: Subduction boundaries are where one tectonic plate moves under another, forming deep ocean trenches in the process.

Question 7

Answer

Accepted Answer

(D) Alfred Wegener
Explanation: Alfred Wegener proposed the theory of continental drift in the early 20th century, suggesting that continents were once connected and have since drifted apart.

Question 8

Answer

Accepted Answer

(B) Rift valleys
Explanation: At divergent boundaries on land, rift valleys are formed as the crust stretches and pulls apart.

Question 9

Answer

Accepted Answer

(D) Transform faulting
Explanation: Transform faulting occurs when two tectonic plates slide horizontally past each other along a transform boundary.

Question 10

Answer

Accepted Answer

(D) Subduction boundary
Explanation: Subduction boundaries often result in the formation of volcanic island arcs due to the melting of the subducted plate and subsequent volcanic activity.

Question 11

Answer

Accepted Answer

(A) Divergent boundary
Explanation: Mid-ocean ridges are formed at divergent boundaries in the ocean, where tectonic plates move away from each other, and new oceanic crust is created through volcanic activity.

Question 12

Answer

Accepted Answer

(D) Mantle convection
Explanation: The movement of tectonic plates is mainly driven by mantle convection, where the hot material in the Earth's mantle rises, cools, and sinks, causing the plates to move.

Question 13

Answer

Accepted Answer

(A) Indian Plate and Eurasian Plate
Explanation: The Himalayan mountain range was formed due to the collision between the Indian Plate and the Eurasian Plate at a convergent boundary.

Question 14

Answer

Accepted Answer

(C) Subduction
Explanation: Subduction occurs when one tectonic plate moves beneath another, leading to the formation of deep ocean trenches.

Question 15

Answer

Accepted Answer

(B) Convergent boundaries
Explanation: The "Ring of Fire" primarily encircles convergent boundaries around the Pacific Plate, where intense tectonic activity occurs, resulting in volcanic eruptions and earthquakes.

Question 16

Answer

Accepted Answer

(C) Transform boundary
Explanation: The San Andreas Fault is an example of a transform boundary, where the Pacific Plate and North American Plate slide horizontally past each other.

Question 17

Answer

Accepted Answer

(A) Igneous rocks
Explanation: Divergent boundaries are associated with volcanic activity, leading to the formation of igneous rocks as lava cools and solidifies.

Question 18

Answer

Accepted Answer

(B) Divergent boundaries
Explanation: Seafloor spreading takes place at divergent boundaries, where tectonic plates move away from each other, leading to the creation of new oceanic crust.

Question 19

Answer

Accepted Answer

(B) Subduction
Explanation: The closing of oceans occurs due to subduction, where one tectonic plate is forced beneath another, leading to the consumption of oceanic crust.

Question 20

Answer

Accepted Answer

(A) Pangea
Explanation: Pangea was the supercontinent that existed during the late Paleozoic and early Mesozoic eras, before breaking apart into the continents we recognize today.

Search Results for: Plate tectonic theory

Plate Tectonic Theory – Important MCQ

Important MCQ on Earthquake Seismology

MCQ on Palaeomagnetism | Unlocking Geological History of the Earth with Paleomagnetic dating

FOLLOW US

RECENT MCQ POSTS

RECENT BLOG POSTS

SUBSCRIBE NOW

GENERAL

USEFUL READS

HELPDESK

FOLLOW US