Evidence of continental drift DID NOT include...

photographs from where they were joined

Earth's plates move because of...

convection currents in the mantle's magma

What happens during sea-floor spreading

new rock forms on the sea floor

Continental Drift was not widely accepted when it was first proposed ...

Wegner couldn't explain why or how the continents moved

How does the Mesosaurus fossil support continental drift?

they couldn't swim between continents

What is the main reason Pangaea broke apart?

convection currents in the mantle causing sea floor spread

ancient super continent "all lands"

studbud

Seafloor Spreading & Continental Drift

16 termsStudBud Administration171 plays

Study guide for Quest (quiz)

Flashcards16 cardsFPractice quizPHost liveL

Questions 16

Answers

1
Compared to ocean crust near deep sea trenches, crust near ocean ridges is...
magnetically reversed
the same age
older
younger
2
Evidence of continental drift DID NOT include...
fossil types
mountain ranges
photographs from where they were joined
continents fitting like puzzle pieces
3
Earth's plates move because of...
seismic waves
tsunamis
earthquakes
convection currents in the mantle's magma
4
What happens during sea-floor spreading
new rock sinks into the mantle
old rock is pushed toward the middle of the ocean
old rock sinks into the mantle
new rock forms on the sea floor
5
Continental Drift was not widely accepted when it was first proposed ...
mantle convection currents weren't in motion at that time
Wegner couldn't explain why or how the continents moved
magnetic and sonar data proved Wegener hypothesis was wrong
continental landmasses were too big to move slowly
6
A vast, underwater mountain chain is called...
oceanic crust
deep sea trench
ocean ridge
ocean floor sediment
7
How does the Mesosaurus fossil support continental drift?
they lived millions of years ago
they couldn't swim between continents
They didn't exist on both continents
It proves it wrong
8
What is the main reason Pangaea broke apart?
convection currents in the mantle causing sea floor spread
dinosaurs walking from one continent to the other
deep ocean trenches recycling crust
continental collisions creating mountain ranges
9
What is the theory called that explains the break-up of Pangaea?
Theory of Subduction
Tectonic Plate
continetal drift
Fossilization
10
What is pangaea?
place to find fossils
top layer of earth's crust
ancient super continent "all lands"
tallest mountain on Earth
11
Features found at DIVERGENT boundaries include:
crumpled mountains
ocean ridges
island arc volcanoes
deep-sea trenches
12
The theory in which continents slowly move is...
continental drift
subduction
convection
sea-floor spreading
13
The presence of a mid ocean ridge and fissure volcanoes indicate ____ boundary.
divergent
convergent
transform
collision
14
Youngest part of the ocean floor is found...
along deep sea trenches
near ocean ridges
where ocean sediments are thickest
Earth's magnetic field changes polarity
15
Alfred Wegener was a (best known for)
geologist
meteorologist
astronomer
geophysicist
16
Which of the following is evidence for sea-floor spreading?
matching patterns of magnetic stripes on the ocean floor
all of the above
volcanic eruptions along mid-ocean ridges
older rock found farther from mid-ocean ridges

Seafloor Spreading & Continental Drift Flashcards | StudBud