AnswersWV-Earth and Space Science A-CRVolcanoes and Plate Tectonics

Volcanoes and Plate Tectonics — Unit test Answers

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Please select the word from the list that best fits the definition

A
uplift
B
subsidence
C
tension
D
compression
E
normal fault
F
anticline
G
syncline
H
reverse fault
2
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The two major volcanic regions are at the island arc and ring of fire. Please select the best answer from the choices provided

A
T
B
F
3

The two types of plains are coastal plains and lowland plains.

A
T
B
F
4

Normal faults form ________stress, reverse faults form __________stress and strike-slip faults form___________stress.

A
shearing, tension, compression
B
shearing, compression, tension
C
tension, compression, shearing
D
compression, shearing, tension
5

New oceanic lithosphere is unable to form at mid-ocean ridges.

A
T
B
F
6

____________ occurs when heat is transferred into an object through motion or movement; an example would be boiling water.

A
conduction
B
radiation
C
convection
D
heat
7

Geologists learn about the inner layers and the structure of the Earth by studying rock samples and seismic wave evidence.

A
T
B
F
8

The three major scales used to measure earthquakes are Mercalli Scale, Richter Scale and Magnitude Scale.

A
T
B
F
9

What type of earthquake wave can travel through both liquids and solids?

A
P waves
B
S waves
C
focus waves
D
surface waves
10

Marina is creating a flow chart of the mechanics of mantle convection and how it relates to tectonic plate movement. Which words should Marina place in each blank of the flow chart?

Question illustration
A
asthenosphere, ridge push, subduct
B
magma, slab pull, subduct
C
lithosphere, ridge pull, float
D
lithosphere, ridge push, subduct
11

The heat from the Sun reaches Earth through convection.

A
T
B
F
12

Please select the word from the list that best fits the definition

A
epicenter
B
focus
C
seismic waves
D
S waves
E
surface waves
F
Mercalli
G
Richter
H
Moment Magnitude
13

The Ring of Fire is a major belt of volcanic activity circling the Pacific Ocean.

A
T
B
F
14

Volcanic belts form along

A
islands in the Pacific Ocean.
B
North American mountain ranges.
C
the boundaries of Earth’s plates.
D
the coast of Antarctica.
15

About one-half of the land area in the United States is made up of mountains.

A
T
B
F
16

Please select the word from the list that best fits the definition

A
magma
B
seismograph
C
global positioning system
D
fossils
E
rift zones
F
magnetic reversal
17

Please select the word from the list that best fits the definition

A
seismic waves
B
asthenosphere
C
mantle
D
lithosphere
E
basalt
F
granite
G
core
H
crust
18

Iceland is a unique land mass, as it gives scientists the opportunity to study processes that normally occur at a submerged (underground) divergent plate boundary. The diagram shows that two tectonic plates meet in Iceland: the North American and the Eurasian plates, as shown in the diagram below. As these plates drift away from one another, a rift (like those normally found on the ocean floor) will be created. What chain of events will most likely occur to Iceland in the future?

Question illustration
A
The rift will widen between the two plates, and new volcanoes will be pushed up from the sea floor to create a volcanic arc running through Iceland.
B
As the rift increases in size, new crust will be created on either side of it, which will eventually fill with soil and become a low-lying valley running through Iceland.
C
The rift will widen, forming a subduction zone and resulting in an ocean trench and the formation of an island arc that separates the two halves of Iceland.
D
The rift will widen between the plates; new crust will form on either side of the rift, water from the ocean will rush in, and eventually Iceland will split apart.
19

Carlos is looking at a picture of a convergent boundary on which a volcanic arc and a trench are identified. Which type of convergent boundary is Carlos looking at?

A
an oceanic-continental convergent boundary
B
an oceanic-arctic convergent boundary
C
an continental-continental convergent boundary
D
an oceanic-oceanic convergent boundary
20

An upward fold in a rock is called a plateau.

A
T
B
F

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