Tectonics

Question 1

What is the theory of plate tectonics?

Answer 1

The theory that Earth’s outer shell is divided into several plates that glide over the mantle.

Question 2

True or False: The Earth’s lithosphere is made up of the crust and the uppermost part of the mantle.

Answer 2

True

Question 3

Fill in the blank: The movement of tectonic plates is driven by __________.

Answer 3

convection currents in the mantle

Question 4

What are the three main types of plate boundaries?

Answer 4

Divergent, convergent, and transform boundaries.

Question 5

Which type of plate boundary is characterized by plates moving away from each other?

Answer 5

Divergent boundary

Question 6

What geological features are commonly formed at convergent boundaries?

Answer 6

Mountain ranges, deep ocean trenches, and volcanic arcs.

Question 7

Multiple choice: Which of the following is NOT a type of tectonic plate boundary? A) Divergent B) Convergent C) Oblique D) Transform

Answer 7

C) Oblique

Question 8

What is subduction?

Answer 8

The process where one tectonic plate moves under another plate and sinks into the mantle.

Question 9

True or False: Transform boundaries are associated with earthquakes.

Answer 9

True

Question 10

What is the Ring of Fire?

Answer 10

A major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.

Question 11

Fill in the blank: The __________ is the layer of the Earth that is semi-fluid and allows tectonic plates to move.

Answer 11

asthenosphere

Question 12

What type of fault is formed at transform boundaries?

Answer 12

Strike-slip fault

Question 13

Multiple choice: Which plate is the largest tectonic plate? A) North American Plate B) Eurasian Plate C) Pacific Plate D) African Plate

Answer 13

C) Pacific Plate

Question 14

What is a hotspot?

Answer 14

A location where a plume of hot material from the mantle creates volcanic activity independent of plate boundaries.

Question 15

True or False: The Himalayas were formed by the collision of the Indian Plate and the Eurasian Plate.

Answer 15

True

Question 16

What is the primary cause of earthquakes?

Answer 16

The sudden release of energy in the Earth’s crust due to tectonic plate movements.

Question 17

Fill in the blank: The __________ theory explains the movement of continents over geological time.

Answer 17

continental drift

Question 18

What are mid-ocean ridges?

Answer 18

Underwater mountain ranges formed by plate tectonics at divergent boundaries.

Question 19

Multiple choice: Which of the following is a characteristic of convergent boundaries? A) Earthquakes B) Volcanic activity C) Mountain building D) All of the above

Answer 19

D) All of the above

Question 20

What is a tectonic plate?

Answer 20

A massive, irregularly shaped slab of solid rock that makes up the Earth’s lithosphere.

Question 21

True or False: The San Andreas Fault is an example of a divergent boundary.

Answer 21

False

Question 22

What is the significance of the Moho layer?

Answer 22

It is the boundary between the Earth’s crust and the underlying mantle.

Question 23

Fill in the blank: The __________ is a scale used to measure the magnitude of earthquakes.

Answer 23

Richter scale

Question 24

What are the two types of crust in plate tectonics?

Answer 24

Continental crust and oceanic crust.

Question 25

Multiple choice: The theory that continents were once joined together is known as A) Plate Tectonics B) Continental Drift C) Sea-Floor Spreading D) Subduction

Answer 25

B) Continental Drift

Question 26

What is the primary geological activity at transform boundaries?

Answer 26

Earthquakes due to the sliding of plates past one another.

Question 27

True or False: Oceanic crust is generally thicker than continental crust.

Answer 27

False