Plate Tectonics

Question 1

What is produced when 2 oceanic crusts pull apart?

Accepted Answer

mid-ocean ridge

Question 2

What SPECIFIC evidence supports the hypothesis that Africa and S. America were once joined?

Accepted Answer

mountain ranges

Question 3

What is produced when 2 continental plates collide?

Accepted Answer

mountain ranges

Question 4

What process continually adds new crust to the ocean floor?

Accepted Answer

seafloor spreading

Question 5

How are magnetic stripes near mid-ocean ridge evidence of seafloor spreading/

Accepted Answer

shows Earth's magnetic field has reversed itself

Question 6

What is the theory that states pieces of Earth's lithosphere are in constant slow motion?

Accepted Answer

plate tectonics

Question 7

What is the name of the large supercontinent that once existed?

Accepted Answer

Pangea

Question 8

Who is responsible for the theory of continental drift?

Accepted Answer

Wegener

Question 9

What is the place where 2 plates slip past each other in opposite directions?

Accepted Answer

transform boundary

Question 10

Where does subduction occur?

Accepted Answer

deep ocean trench

Question 11

What technology did scientists use to map the mid-ocean ridge?

Accepted Answer

sonar

Question 12

What is produced when 2 continental crusts pull apart?

Accepted Answer

rift valley

Question 13

Where does molten material rise up through during seafloor spreading?

Accepted Answer

mid ocean ridge

Question 14

Where is ocean crust younger?

Accepted Answer

Closer to the mid ocean ridge

Question 15

What is the cause of the plate's movement?

Accepted Answer

convection currents

Question 16

What is produced when 2 ocean crusts collide?

Accepted Answer

deep ocean trench(subduction)

Question 17

What is Earth's thick, plastic like layer?

Accepted Answer

asthenosphere

Questions 17