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Unit 3 Test Review
Test Description: Your test is tomorrow. Please review QUIZLET for your short answer questions.
Instructions: Answer all questions to get your test result.
1) 1. True or False: Slow movements of mantle rock called radiation transfer heat in the mantle.
A
false
B
true
2) 2. True or False: Stress forces squeeze or pull the rock in the Earth's core.
A
true
B
false
3) 3. Mid-ocean ridges are places where oceanic crust sinks back to the mantle.
A
false
B
true
4) Diverging boundaries pulling away from each other create a?
A
trench
B
mountain
C
Volcano
D
rift valley
5) 5. When a liquid or gas is heated, the particles move faster and spread apart. What happens to the fluid's density as a result of this?
A
it decreases
B
it expands
C
it increases
D
it contracts
6) 6. What three types of evidence provided support for the theory of sea-floor spreading?
A
drilling samples, fossils, land features
B
molten material, drilling samples, magnetic stripes
C
land features, fossils, climate change
D
magnetic stripes, climate change, subduction
7) Earth's outer core is composed of?
A
basalt
B
solid iron
C
granite rock
D
molten iron
8) 8. Stress will build until an earthquake occurs if friction along a fault is
A
changed to heat
B
decreasing
C
low
D
high
9) 9. To estimate the total energy released by an earthquake, a geologist should use the
A
epicenter scale
B
richter scale
C
moment magnitude scale
D
mercalli scale
10) Which step in a volcanic eruption occurs just before the volcano erupts?
A
lava hardens forming volcanic rock
B
magma collects in the magma chamber
C
expanding gases push magma through the pipe
D
the roof of the empty magma chamber collapses
11) Which volcanic feature forms when islands form in a slight curve?
A
island arc
B
caldera
C
mid-ocean ridge
D
hot spot
12) Magma pushes up from the mantle in the middle of the Atlantic Ocean. As a result, the Atlantic Ocean is growing by several centimeters each year. How else has this magma affected the Atlantic Ocean?
A
It has created a long, large mountain range below the ocean's surface.
B
It has made the Atlantic Ocean waters much warmer than the Pacific Ocean waters.
C
It has produced volcanoes along the edges of the separated continents.
D
It has produced a flat, smooth ocean floor as the continents separate.
13) How do active volcanoes located on islands create more land area on these islands?
A
Heat from volcanoes cause the ocean to evaporate, exposing more land.
B
Lava from volcanoes cools and hardens, forming more land.
C
Lava from volcanoes melts through old rocks, exposing more land.
D
Heat from volcanoes causes minerals in seawater to condense, forms more land.
14) About 150 million years ago, Pangea broke up into the individual continents we have today. What was MOST LIKELY to survive on the continent of Australia after it broke apart than before?
A
organisms that hibernated for long periods of time
B
organisms that migrated
C
organisms that required a warm climate
D
organisms that lived in fresh water
15) The inner core of Earth is made mostly of the metals
A
iron and nickel
B
copper and mercury
C
gold and silver
D
zinc and iron
*select an answer for all questions
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