The African Rift Valley is always expanding. What can be concluded about the past from this?

Continents may have broken in the past as well

The matching coastlines of Africa and S.A. Help support which theory?

The theory of continental drift

Wegener knew fossils were found on Africa and S.A., Evidence supported his idea that

Africa & S.A. We're once connected

Where do most earthquakes and volcanoes occur?

Along the edges of tectonics plates

A fossil that supports plate tectonics theory is one that

Land organism found on continents separated by oceans

Which of the following was an important part of the theory of continental drift?

Africa & S.A. were once joined together as a supercontinent

Plate tectonics was replaced by continental drift that was proposed by Wegener, because

New evidence found that had the development of a new theory

In his theory of continental drift, Wegner proposed that

The continents were once joined together in 1land mass

Which piece of evidence did Wegener use to support his theory of continental drift?

Fossils of same organisms of same age R found on all cont

Which of the following are found at divergent plate boundaries?

Mid-ocean ridges and rift valleys

Why was Wegner' theory of continental drift not at 1st accepted by others?

He couldn't explain how the continents move

Name of the ancient supercontinent

Faults and folds are caused by

The movement of tectonics plates

What evidence supports the theory of plate tectonics?

Fossils & rocks on opposite sides of oceans match

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Plate Tectonics

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Answers

1
The African Rift Valley is always expanding. What can be concluded about the past from this?
Continents may have broken in the past as well
Two land masses combined to form Africa
Rift valleys are a part of every continent
A meteorite collided into this place
2
This is seafloor spreading, which describes this diagram correctly?
Band C is younger than band A
Band D is older than band E
Band B is younger than band D
Band A is older than band C
3
The matching coastlines of Africa and S.A. Help support which theory?
The theory of gravity
The theory of superposition
The theory of evolution
The theory of continental drift
4
Wegener knew fossils were found on Africa and S.A., Evidence supported his idea that
Reptiles originated near the equator
Oceans once covered Africa and S.A.
Africa and S.A. We're once covered in ice
Africa & S.A. We're once connected
5
Where do most earthquakes and volcanoes occur?
In the centers of continents
Along the edges of tectonics plates
Along the equator
In the polar regions
6
A fossil that supports plate tectonics theory is one that
Is very young
Is very old
Is a marine organism found in different oceans
Land organism found on continents separated by oceans
7
Which of the following features is found along divergent boundaries?
Folded mountains
Ocean trenches
Mid-ocean ridges
Island arcs
8
Which of the following was an important part of the theory of continental drift?
New seafloor formed at MOR at the plates move apart
Continental rocks are much older than rocks at ocean basins
Old sea floor is diving back N2 mantle at subduction zones
Africa & S.A. were once joined together as a supercontinent
9
Plate tectonics was replaced by continental drift that was proposed by Wegener, because
New evidence found that had the development of a new theory
Theory of continental drift wasnt based w/facts & knowledge
Tectonic plates only started to move recently
Theory of continental drift was wrong
10
In his theory of continental drift, Wegner proposed that
The continents are floating around on a large ocean
Earth is expanding
The continents are all moving together & will soon collide
The continents were once joined together in 1land mass
11
Which piece of evidence did Wegener use to support his theory of continental drift?
Satellite measurements show cont R movin slowly 2 each other
Pics of the seafloor show the ocean floor spreading apart
Fossils of same organisms of same age R found on all cont
12
When new evidence was uncovered, plate tectonics replaced which theory?
Continental drift
Big bang
Relativity
Evolution
13
Which of the following are found at divergent plate boundaries?
Continental shelves and submarine canyons
Ocean trenches and abyssal planes
Impact craters and alluvial fans
Mid-ocean ridges and rift valleys
14
Identical fossils in Africa & S. America support which theory?
The Theory of Evolution
The Plate Tectonics Theory
The Big Bang Theory
The Steady State Theory
15
Why was Wegner' theory of continental drift not at 1st accepted by others?
He couldn't explain how the continents move
The continents weren't moving at that time
He had no evidence to support it
The shape of the continents dint match up
16
What is Pangaea?
Name of the scientist who 1st discovered plate tectonics
A type of thick, sticky rock
Name of the ancient supercontinent
The process by which tectonics plates move around the earth
17
Identify the product of sea floor spreading
Salt in the sea
Volcanic rocks
Tide
Sedimentary rocks
18
Faults and folds are caused by
The heating of earth
The shrinking of earth
The movement of tectonics plates
Volcanoes
19
The theory that the continents move over the Earth's surface is the theory of
The big bang
Continental drift
Relativity
Evolution
20
The process by which tectonics plates move apart at MOR is called
Reverse faults
Sea floor spreading
Subduction
Isostatic rebound
21
What evidence supports the theory of plate tectonics?
Fossils
How minerals are distributed
Geographic features
All of the above
22
Pic shows fossils over cont, which fossil gave evidence that 5/7 conts were once joined
Glossopteris
Lystrosaurus
Cynognathus
Mesosaurus
23
Which of the following features is created when tectonic plates collide?
Mesas
Buttes
Sinkholes
Folded mountains
24
What evidence supports the theory of plate tectonics?
Rocks of all ages can be found on both sides of the oceans
Fossils & rocks on opposite sides of oceans match
Land masses been moving around for millions of years
Deep sea trenches R different in the Atl ocean vs Pac ocean

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