Plate tectonics

Question 1

Earth’s lithosphere is composed of fragments or plates that move around and interact with one another.

Answer 1

Plate tectonics theory

Question 2

Supercontinent

Answer 2

Pangaea

Question 3

Father of the plate tectonics theory

Answer 3

Alfred Wegener

Question 4

• Outermost layer of the earth
• Composed of upper mantle and crust

Answer 4

Lithosphere

Question 5

Continental crust

Answer 5

thicker and less dense

Question 6

Thinner and more dense

Answer 6

Oceanic crust

Question 7

Made of various types of rocks and sediments floating on top of the malleable upper mantle

Answer 7

crust

Question 8

Two types of Earth’s crust

Answer 8

Continental crust and Oceanic crust

Question 9

Lithosphere is divided into fragments known as

Answer 9

Plates

Question 10

Surface waves

Answer 10

long surface waves and Rayleigh waves

Question 11

Method used to find an Earthquake’s epicenter

Answer 11

triangulation method

Question 12

Earthquake centers and volcano locations are distributed along the

Answer 12

plate margins

Question 13

Most volcano arcs found in the

Answer 13

Pacific ring of fire

Question 14

Year Plate tectonic theory was made

Answer 14

1915

Question 15

• Under the lithosphere
• A ductile layer
• Composed of partly molten rocks due to high temperature

Answer 15

asthenosphere

Question 16

Movement of Plates

Answer 16

Slow and constant motion

Question 17

Plate margins known as

Answer 17

Plate boundaries

Question 18

Three types of Plate boundaries

Answer 18

• Convergent
• Divergent
• Transform

Question 19

A deep, narrow depression on the ocean seafloor caused by the collision and/or subduction of plates.

Answer 19

Trench

Question 20

Tectonic plate forces (2)

Answer 20

• Resisting force
• Driving forces

Question 21

• Plates move toward each other
• Collision of two plates

Answer 21

Convergent plate boundaries

Question 22

Plates move apart from each other

Answer 22

Divergent plate boundaries

Question 23

Process of oceanic crust sinks down the continental crust and goes back to the mantle

Answer 23

Subduction

Question 24

Types of convergent boundaries:

Answer 24

• Oceanic continental crust
• Oceanic oceanic crust
• Continental continental crust

Question 25

Forms Islands

Answer 25

Oceanic- oceanic crust

Question 26

Forms mountains

Answer 26

Continental- continental crust

Question 27

Forms Volcanoes

Answer 27

Oceanic- continental crust

Question 28

Two plates slide past horizontally to each other without destroying the lithospheric plate

Answer 28

Transform plate boundary