Which was not one of his arguments?

Mantle convection could move continents.

At transform boundaries

the plates slip past each other in opposite directions., earthquakes often occur.

The San Andreas Fault

causes earthquakes., is a transform boundary.

New oceanic crust is created

at oceanic divergent boundaries., at mid-ocean ridges.

Why did geologists disagree with Wegener's theory?

No one knew what could push continents around.

At convergent boundaries

mountains form on land., trenches form at sea.

At the peak of mid-ocean ridges are

active volcanoes., steep-sided valleys.

Trenches or rift valleys form when

2 continental plates diverge., 2 ocean plates converge.

2 ocean plates diverge., 2 continental plates converge.

At divergent boundaries

mid-ocean ridges form under the sea., rift valleys form on land.

Evidence of sea-floor spreading includes

strips of rock containing silver & gold., rocks that cooled from magma rapidly in water.

Convection in the mantle is caused by

changes in density and gravity.

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Plate Tectonics

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Review for test Pearson Ch. 2 Inside Earth

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Questions 24

Answers

1
Which is true?
Sea-floor spreading breaks plates.
Subduction pulls plates.
Sea-floor spreading pulls plates.
Subduction pushes plates.
2
Which was not one of his arguments?
Continents seem to fit together.
Mantle convection could move continents.
Fossils match up on distant continents.
Landforms match up on distant continents.
3
At transform boundaries
the plates slip past each other in opposite directions.
earthquakes often occur.
old crust subducts.
new crust forms.
4
What causes denser crust to sink?
pressure
mass
temperature
gravity
5
As you move away from mid-ocean ridges,
rocks are striped.
rocks become older.
rocks become younger.
rocks are smoother.
6
The San Andreas Fault
causes earthquakes.
is a continental divergent boundary.
is a continental convergent boundary.
is a transform boundary.
7
New oceanic crust is created
in subduction zones.
at oceanic divergent boundaries.
at mid-ocean ridges.
at transform faults.
8
Plate tectonics are driven by
the moon's gravitational pull.
convection in Earth's mantle.
the election of Donald Trump.
Earth's rotation.
9
Plates that move toward each other
transform
divergent
regurgitated
convergent
10
Why did geologists disagree with Wegener's theory?
They didn't think continents fit together.
It was too weird for words.
They were busy inventing baseball.
No one knew what could push continents around.
11
Which fossil did he claim as evidence?
folded mountains
glossopteris
coal fields
lystrosaurus
12
At convergent boundaries
mountains form on land.
rift valleys form on land.
trenches form at sea.
rift valleys form at sea.
13
When new crust is produced it
shrinks the ocean.
bothers the fish.
causes sea-floor spreading.
draws plates together.
14
At the peak of mid-ocean ridges are
cell phone towers
active volcanoes.
wonderful ski trails.
steep-sided valleys.
15
Ocean crust sinks back into the mantle
in rift valleys.
at mid-ocean ridges.
along transform boundaries.
at subduction zones.
16
Trenches or rift valleys form when
2 continental plates diverge.
2 ocean plates converge.
2 ocean plated diverge.
2 continental plates converge.
17
Earth's plates are in slow, constant motion.
Theory of Continental Drift.
Theory of Magnetism.
Theory of Plate Tectonics.
Theory of Subduction & Spreading.
18
Who first suggested moving continents?
Alfred Wegener
Alfred Waggoner
Alfred Tectonics
James & Collin
19
Mountains form when
2 ocean plates diverge.
2 continental plates converge.
2 continental plates diverge.
2 ocean plates converge.
20
Subduction occurs because
convergent boundaries sink.
continental crust is denser.
divergent boundaries sink.
oceanic crust is denser.
21
At divergent boundaries
mid-ocean ridges form under the sea.
trenches form on land.
trenches form under the sea.
rift valleys form on land.
22
Evidence of sea-floor spreading includes
strips of rock containing silver & gold.
rocks that cooled from magma rapidly in water.
strips of rocks bearing fossils.
strips of rock showing magnetic reversals.
23
Convection in the mantle is caused by
changes in temperature and gravity.
Hillary Clinton and Donald Trump.
changes in pressure and temperature.
changes in density and gravity.
24
Under-water mountain ranges adding crust:
volcanoes
deep ocean trenches
mid-ocean ridges
mid-ocean trenches

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