Earth Science Unit 2 Review

Question 1

Cinder cones are generally formed when volcanoes eject:

Accepted Answer

Solid fragments

Question 2

Tsunamis result from earthquakes with epicenters located:

Accepted Answer

On the ocean floor

Question 3

The theory of plate tectonics is most directly based on which of the following interactions?

Accepted Answer

Lithospheric plates riding on asthenosphere

Question 4

Magma that erupts under water often forms rounded formations called:

Accepted Answer

Pillow lava

Question 5

What geological discovery gave scientific evidence to verify of continental drift?

Accepted Answer

Reversed magnetic polarity on land & ocean floors

Question 6

What type of lava flow has been found on Earth’s moon?

Accepted Answer

Basaltic

Question 7

Rising of the crust would most likely be caused by the crust being:

Accepted Answer

Compressed

Question 8

What of the following was used as evidence for the theory of continental drift?

Accepted Answer

Similarity in continental margins

Question 9

Great pressure in the asthenosphere keeps rock there mostly:

Accepted Answer

Solid

Question 10

Which of the following may result from the collision of one plate with another?

Accepted Answer

Convergent boundary

Question 11

Where in the Earth do convection currents occur?

Accepted Answer

The asthenosphere

Question 12

A string of volcanoes that forms along a trench is called:

Accepted Answer

An island arc

Question 13

What evidence found Africa & S.America supports the theory that they were once joined?

Accepted Answer

Glacial Debris

Question 14

Pangaea is the term used to describe:

Accepted Answer

An ancient landmass

Question 15

Paleomagnetism of the ocean floor is used to identify the:

Accepted Answer

Time of rock cooling and hardening

Question 16

Which of the following is sometimes used to predict earthquakes?

Accepted Answer

Magnitudes of past earthquakes

Question 17

What type of mountains are commonly located where continents have collided?

Accepted Answer

Folded

Question 18

Rocks deeper in the crust are less likely break than rocks close to the surface because of

Accepted Answer

Higher temperatures

Question 19

The earth’s layer of solid rock that flows under pressure is called the:

Accepted Answer

Asthenosphere

Question 20

Surface waves are especially destructive when traveling through:

Accepted Answer

Loose earth

Question 21

A collision between a continental plate and an oceanic plate is most likely to produce:

Accepted Answer

Mountain ranges

Question 22

The place where slippage first occurs is called an earthquake’s:

Accepted Answer

Focus

Question 23

The force that can change the size and shape of rocks is called:

Accepted Answer

Stress

Question 24

Deep-focus earthquakes usually occur in areas in which one tectonic plate:

Accepted Answer

Subducts under another

Question 25

Seafloor spreading occurs at:

Accepted Answer

Divergent boundaries

Question 26

Most magma forms in:

Accepted Answer

The asthenosphere

Question 27

What type of lava usually flows out of oceanic volcanoes?

Accepted Answer

Mafic

Question 28

The transfer of heat through the movement of heated fluid material in the earth’s crust is:

Accepted Answer

Convection

Question 29

The magnitude of an earthquake is a direct measure of:

Accepted Answer

Energy released

Question 30

Knowledge of temp & pressure in the mantle is based on analysis of heat flow measurements and:

Accepted Answer

Seismic wave behavior

Question 31

Which of the following is the major cause of deformation of the earth’s crust?

Accepted Answer

Plate tectonics

Question 32

Pillow lava is most commonly found:

Accepted Answer

Mid-ocean ridges

Question 33

Up and down motions of the crust are called:

Accepted Answer

Isostatic adjustments

Question 34

What is formed when a magma chamber empties and collapses?

Accepted Answer

Caldera

Question 35

The theory of microplate terranes provides an explanation of how:

Accepted Answer

Continents expand

Question 36

An opening in the earth’s surface through which molten rock flows is called a:

Accepted Answer

Vent

Question 37

Where are earthquakes most likely to occur?

Accepted Answer

Near active faults

Question 38

What does the Mercalli scale describe?

Accepted Answer

Intensity of an earthquake

Question 39

As rock moves away from a mid-ocean range it is replaced by:

Accepted Answer

Molten rock

Question 40

The theory that Mars may still be volcanically active is based on evidence of:

Accepted Answer

Seismic activity

Earth Science Unit 2 Review

Questions 40

Earth Science Unit 2 Review

Questions 40