Quiz about Continental Drift and Seafloor Spreading

Question 1

What did Wegener name the large supercontinent where all the continents were joined together?

Accepted Answer

Pangaea

Answer

Wegenerland

Answer

Gondwanaland

Answer

Laurasia

Question 2

Most geologists rejected Wegener's idea of Continental Drift because _________.

Accepted Answer

He couldn't identify "how" continents to move around.

Answer

He used too many pieces of evidence to support the idea.

Answer

He wanted to know what Earth looked like millions of years ago, which is impossible.

Answer

They were afraid of the new idea.

Question 3

Wegener used the fit of the continents as evidence to support his hypothesis of Continental Drift.

Accepted Answer

true

Answer

false

Question 4

Wegener used matching mountain ranges across different continents as evidence to support his hypothesis of Continental Drift.

Accepted Answer

true

Answer

false

Question 5

Wegener used evidence of glaciers in places now too warm as evidence to support his hypothesis of Continental Drift.

Accepted Answer

true

Answer

false

Question 6

Wegener used matching matching fossils of the same organisms on different continents as evidence to support his hypothesis of Continental Drift.

Accepted Answer

true

Answer

false

Question 7

What were 2 kinds of evidence were used to prove that the seafloor spread?

Accepted Answer

magnetic seafloor stripes, age of rock samples

Answer

rock formations, WWII shipwrecks,

Answer

magnetic seafloor stripes, WWII ship logs

Question 8

What technology was used during WWII to detect enemy submarines and produce the first map of the seafloor?

Accepted Answer

Sonar

Answer

Radiam

Answer

GPS

Question 9

Process by which new ocean crust forms.

Accepted Answer

Seafloor spreading

Answer

Continental drift

Answer

Mid-ocean ridge

Answer

Rift

Question 10

The zone where one plate slides under another is called the

Accepted Answer

Subduction zone

Answer

Convergent zone

Answer

Transform zone

Answer

Mantle zone

Question 11

Undersea mountain ranges are called a_________.

Accepted Answer

Mid-ocean ridge

Answer

Rift

Answer

seafloor spreading

Answer

Continental drift

Question 12

Wegener used matching rock types and ages across different continents as evidence to support his hypothesis of Continental Drift.

Accepted Answer

true

Answer

false

Question 13

Wegener used evidence of convection currents in the mantle as evidence to support his hypothesis of Continental Drift.

Accepted Answer

false

Answer

true

Question 14

The OLDEST seafloor is located?

Accepted Answer

Farthest from the mid-ocean ridge

Answer

Closest to the mid-ocean ridge

Question 15

Sea-floor spreading begins at the

Accepted Answer

Mid-ocean ridge

Answer

Deep ocean trench

Answer

Continent's edge

Question 16

Older crust is found towards the...

Accepted Answer

Deep-ocean trench

Answer

Mid-ocean ridge

Answer

Asthenosphere

Question 17

Why does oceanic crust (density 3ish) sink below the continental crust (density 2.6ish) during subduction

Accepted Answer

oceanic crust is more dense

Answer

oceanic crust is less dense

Answer

oceanic crust is older

Answer

oceanic crust is warmer

Question 18

Wegener's idea of Continental Drift was rejected by geologists because _________.

Accepted Answer

He couldn't identify how or even why the continents to moved around.

Answer

He used too many pieces of evidence to support the idea.

Answer

He wanted to know what Earth looked like millions of years ago, which is impossible.

Answer

They were afraid of the new idea.

Question 19

Who came up with the theory of seafloor spreading?

Accepted Answer

Harry Hess

Answer

Alfred Wegner

Answer

Mrs. White

Question 20

Who is the person credited with developing the theory of continental drift?

Accepted Answer

Alfred Wegener

Answer

Harry Hess

Answer

Albert Einstein

Answer

Isaac Newton

Question 21

What are the two types of crust?

Accepted Answer

continental and oceanic

Answer

ocean and basin

Answer

lower and upper

Answer

thick and thin

Question 22

Younger sea floor crust is located...

Accepted Answer

at the mid ocean ridges

Answer

farther from the mid-ocean ridges

Answer

near the continents

Question 23

What causes the crust to move?

Accepted Answer

convection currents

Answer

conduction

Answer

tension

Answer

radiation

Question 24

Why were magnetic patterns found on the ocean floor puzzling?

Accepted Answer

They showed alternating bands of rock crystals pointing north and south.

Answer

No rocks were magnetic.

Answer

They did not show alternating bands of rock crystals pointing north and south.

Answer

All rocks were magnetic.

Question 25

What is label G

Accepted Answer

Trench

Answer

Mid ocean ridge

Answer

abyssal plain

Answer

sea mount

Question 26

What are Mid-Ocean Ridges?

Accepted Answer

A chain of underwater mountains where the magma oozes out.

Answer

A chain of underwater waterfalls

Answer

A chain of underwater rocks

Question 27

Which is NOT evidence of sea-floor spreading?

Accepted Answer

Fossil evidence

Answer

Molten magma constantly erupting

Answer

Drilling samples of rock

Answer

Magnetic stripes

Question 28

What is label D

Accepted Answer

Mid ocean ridge

Answer

Trench

Answer

abyssal plain

Answer

sea mount

Question 29

How long did it take the continents to move into their current position?

Accepted Answer

Hundreds of millions of years

Answer

Hundreds of years

Answer

Thousands of years

Answer

Almost a million years

Question 30

What do you call the evidence of Wegener's Theory that tells about the remains of an organism that lived long time ago?

Accepted Answer

fossils

Answer

ashes

Answer

follicles

Answer

bones

Question 31

What causes continents to move?

Accepted Answer

all of the above

Answer

seafloor spreading

Answer

convection currents swirling

Answer

magma oozing out of a mid ocean ridge

Question 32

True or False: Our continents will eventually become a supercontinent (like Pangaea) again, far in the future

Accepted Answer

True

Answer

False

Question 33

What is the rate at which the Atlantic Ocean is expanding?

Accepted Answer

5-10 cm per year- like how our fingernails grow

Answer

5-10 feet per year

Answer

5-10 km per year

Question 34

True or False: The plates will never stop moving

Accepted Answer

True

Answer

False

Question 35

Alfred Wegener proposed his theory of Continental Drift in the early 20th century. Why did scientists refuse to believe him?

Accepted Answer

He could not explain HOW the plates moved

Answer

He was not a REAL scientist

Answer

Scientists did not think his evidence was real

Question 36

Which layer of Earth contains the tectonic plates?

Accepted Answer

crust and the uppermost mantle

Answer

lower and middle mantle

Answer

outer core

Answer

inner core

Question 37

What is this image trying to show?

Accepted Answer

Fossil evidence suggesting that the continents were connected

Answer

How the shape of the continents match

Answer

Rock evidence showing that the continents were connected

Question 38

The force in the MANTLE that makes the plate move is called _________

Accepted Answer

Convection currents

Answer

conduction

Answer

condensation

Question 39

During WWII the navy mapped the ocean floor with _______.

Accepted Answer

SONAR waves

Answer

a robotic rover

Answer

radiation evidence

Question 40

Where would the oldest rock be found?

Accepted Answer

O

Answer

L

Answer

M

Answer

N

Question 41

The average density of continental crust is 2.8 g/cm³ and the average density of oceanic crusts is 3.2 g/cm³. If these two plates came together, what would happen?

Accepted Answer

The oceanic plate would sink under the continental plate.

Answer

The two plates would push apart and form a rift zone.

Answer

The oceanic plate would rise up over the continental plate.

Answer

The two plates would meet head on and rise up to form mountains.

Question 42

Seafloor spreading...

Accepted Answer

creates new oceanic crust

Answer

destroys or recycles crust

Answer

creates new continental crust

Answer

creates old crust

Question 43

This is a picture of glacier scars found in Africa.  What are these evidence for?

Accepted Answer

Africa was once in an area of the Earth that had a very cold climate

Answer

Africa has always been near the equator

Answer

The continents have not moved

Answer

sea floor spreading

Question 44

The Glomar Challenger_____

Accepted Answer

has been drilling seafloor samples for over 50 years

Answer

is a space shuttle

Answer

is an oil rig

Question 45

Before sonar waves evidence, people believed that the ocean was ______.

Accepted Answer

flat and sandy

Answer

had mountains just like on land

Answer

was coral reefs

Question 46

The temperature gets _______ closer to the ocean ridge.

Accepted Answer

hotter since magma is closer to the ocean floor

Answer

cooler since magma is farther from the ocean floor

Answer

stays the same since magma is very far from the ocean floor

Continental Drift and Seafloor Spreading

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