Question 1

What is a turbidity current?

Accepted Answer

Particularly efficient at eroding rock a

Question 2

Granite is more dense than basalt.

Accepted Answer

A) True 
 B)False

Question 3

Strike-slip faults between two offset segments of a mid-ocean ridge are called _______________ faults.

Accepted Answer

The answer of Strike-slip faults between two offset segments of...

Question 4

What is a magnetometer?

Accepted Answer

A magnetometer is an instrumen

Question 5

The base of the food chain at seafloor hydrothermal vents relies on chemical energy rather than energy from the Sun.

Accepted Answer

A) True 
 B)False

Question 6

The abyssal plains of the ocean are covered with ____ sediment.

Accepted Answer

A)  pelagic 
B)  terrigenous 
C)  fluvial 
D)  pillow 
A)  pelagic 
B)  terrigenous 
C)  fluvial 
D)  pillow

Question 7

What is the difference between a seamount and an oceanic island?

Accepted Answer

A seamount is a submarine moun

Question 8

Oceanic crust is mostly composed of _______________.

Accepted Answer

The answer of Oceanic crust is mostly composed of _______________....

Question 9

A circular coral reef that forms a ring of islands around a central lagoon is a(n) _______________.

Accepted Answer

The answer of A circular coral reef that forms a...

Question 10

What is an advantage of the multibeam system?

Accepted Answer

A major advantage of the multi

Question 11

What is an accreted terrane?

Accepted Answer

When an island arc and continent begin t

Question 12

An oceanic island ____.

Accepted Answer

A)  rises isostatically as it becomes older 
B)  is a seamount that rises above sea level 
C)  forms because continental crust is less dense than oceanic crust 
D)  is composed entirely of terrigenous sediment 
A)  rises isostatically as it becomes older 
B)  is a seamount that rises above sea level 
C)  forms because continental crust is less dense than oceanic crust 
D)  is composed entirely of terrigenous sediment

Question 13

How could the Mid-Ocean Ridge system have caused sea level to rise in the past?

Accepted Answer

A)  By bringing water up from the mantle 
B)  By spreading rapidly, creating a broader mid-ocean ridge that displaces seawater 
C)  By causing tsunamis during earthquakes 
D)  By heating the ocean until polar sea ice melts 
A)  By bringing water up from the mantle 
B)  By spreading rapidly, creating a broader mid-ocean ridge that displaces seawater 
C)  By causing tsunamis during earthquakes 
D)  By heating the ocean until polar sea ice melts

Question 14

There is very little tectonic activity at _______________ continental margins.

Accepted Answer

The answer of There is very little tectonic activity at...

Question 15

A flat-topped seamount is called a(n) _______________.

Accepted Answer

The answer of A flat-topped seamount is called a(n) _______________....

Question 16

Atolls are volcanic peaks on the ocean floor.

Accepted Answer

A) True 
 B)False

Question 17

Hot seawater dissolves metals as it circulates through oceanic crust beneath hydrothermal vents such as black smokers.

Accepted Answer

A) True 
 B)False

Question 18

Island arcs form ____.

Accepted Answer

A)  along convergent boundaries between two continental plates 
B)  along transform faults 
C)  along subduction zones between two colliding oceanic plates 
D)  near mid-ocean ridges 
A)  along convergent boundaries between two continental plates 
B)  along transform faults 
C)  along subduction zones between two colliding oceanic plates 
D)  near mid-ocean ridges

Question 19

A chain of volcanic islands that form along a subduction zone is called a(n) _______________.

Accepted Answer

The answer of A chain of volcanic islands that form...

Question 20

What is an atoll, how big are they?

Accepted Answer

An atoll is a circular coral r

Exam 15: Ocean Basins

What is a turbidity current?

Granite is more dense than basalt.

Strike-slip faults between two offset segments of a mid-ocean ridge are called _______________ faults.

What is a magnetometer?

The base of the food chain at seafloor hydrothermal vents relies on chemical energy rather than energy from the Sun.

The abyssal plains of the ocean are covered with ____ sediment.

What is the difference between a seamount and an oceanic island?

Oceanic crust is mostly composed of _______________.

A circular coral reef that forms a ring of islands around a central lagoon is a(n) _______________.

What is an advantage of the multibeam system?

What is an accreted terrane?

An oceanic island ____.

How could the Mid-Ocean Ridge system have caused sea level to rise in the past?

There is very little tectonic activity at _______________ continental margins.

A flat-topped seamount is called a(n) _______________.

Atolls are volcanic peaks on the ocean floor.

Hot seawater dissolves metals as it circulates through oceanic crust beneath hydrothermal vents such as black smokers.

Island arcs form ____.

A chain of volcanic islands that form along a subduction zone is called a(n) _______________.

What is an atoll, how big are they?

Earth Systems

Minerals

Rocks

Geologic Time: a Story in the Rocks

Geologic Resources

The Active Earth: Plate Tectonics

Earthquakes and the Earths Structure

Volcanoes and Plutons

Mountains

Weathering, Soil, and Erosion

Fresh Water: Streams, Lakes, Ground Water, and Wetlands

Water Resources

Glaciers and Ice Ages

Deserts and Wind

Oceans and Coastlines

The Atmosphere

Energy Balance in the Atmosphere

Moisture, Clouds, and Weather

Climate

Climate Change

Motions in the Heavens

Planets and Their Moons

Stars, Space, and Galaxies

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