Question 1

Passive continental margins line coasts that are far from tectonically active areas.

Accepted Answer

A) True 
 B)False

Question 2

Trenches and island arcs are found at spreading centers.

Accepted Answer

A) True 
 B)False

Question 3

The continental shelf is a ____.

Accepted Answer

A) narrow strip on the East Coast of the United States 
B) steep zone dropping off to the deep seafloor like a cliff 
C) featureless plain unlike the neighboring continental slope 
D) gently sloping platform with a variable landscape 
A) narrow strip on the East Coast of the United States 
B) steep zone dropping off to the deep seafloor like a cliff 
C) featureless plain unlike the neighboring continental slope 
D) gently sloping platform with a variable landscape

Question 4

Distinguish between active and passive continental margins.

Accepted Answer

As lithospheric plates move about the pl

Question 5

The islands bordering deep-sea trenches are ____.

Accepted Answer

A) also referred to as "black smokers" 
B) accumulations of sediments on the margins of the trenches 
C) formed from the activities of coral and other organisms 
D) eruptive volcanoes called island arcs 
A) also referred to as "black smokers" 
B) accumulations of sediments on the margins of the trenches 
C) formed from the activities of coral and other organisms 
D) eruptive volcanoes called island arcs

Question 6

Flat-topped seamounts that rise from the ocean floor are called ____.

Accepted Answer

A) ridges 
B) island arcs 
C) guyots 
D) abyssal hills 
A) ridges 
B) island arcs 
C) guyots 
D) abyssal hills

Question 7

The Challenger expedition used multibeam echo sounders to contour the seafloor.

Accepted Answer

A) True 
 B)False

Question 8

Scientists think that turbidity currents contribute to the formation of submarine canyons.

Accepted Answer

A) True 
 B)False

Question 9

Active continental margins are located ____.

Accepted Answer

A) along the east coast of the United States 
B) along the east coast of South America 
C) on the west coasts of both North and South America 
D) all around Africa 
A) along the east coast of the United States 
B) along the east coast of South America 
C) on the west coasts of both North and South America 
D) all around Africa

Question 10

A seamount is a volcanic projection that does not rise above the surface.

Accepted Answer

A) True 
 B)False

Question 11

What is the deepest feature in the ocean? Where is this feature located, and how did it form? Is this feature, and others like it, tectonically stable or tectonically active?

Accepted Answer

The deepest part of the ocean is the Mar

Question 12

Hydrothermal vents are located near ____.

Accepted Answer

A) passive continental margins 
B) zones of rapid seafloor spreading 
C) the edges of the deep sea trenches 
D) the margins of the Hawaiian chain 
A) passive continental margins 
B) zones of rapid seafloor spreading 
C) the edges of the deep sea trenches 
D) the margins of the Hawaiian chain

Question 13

The deepest features in the ocean are ____.

Accepted Answer

A) continental slopes 
B) abyssal plains 
C) submarine canyons 
D) ocean trenches 
A) continental slopes 
B) abyssal plains 
C) submarine canyons 
D) ocean trenches

Question 14

Submarine canyons occur ____.

Accepted Answer

A) at the part of an ocean basin nearest the poles 
B) at the part of an ocean basin nearest the equator 
C) on the continental shelf and continental slope 
D) at the center of an ocean basin, at the edges of the mid-ocean ridge 
A) at the part of an ocean basin nearest the poles 
B) at the part of an ocean basin nearest the equator 
C) on the continental shelf and continental slope 
D) at the center of an ocean basin, at the edges of the mid-ocean ridge

Question 15

Submarine canyons ____.

Accepted Answer

A) always run parallel to coast 
B) have gradual slopes and are very wide 
C) can never cut into rock 
D) cut into the continental shelf and may extend almost to the shore 
A) always run parallel to coast 
B) have gradual slopes and are very wide 
C) can never cut into rock 
D) cut into the continental shelf and may extend almost to the shore

Question 16

What is a submarine canyon and how are they formed?

Accepted Answer

A submarine canyon is a canyon that cuts

Question 17

Which statement accurately describes a turbidity current?

Accepted Answer

A) A fast dense current of water that carries sediments offshore 
B) The cause of mid-ocean trenches 
C) A phenomenon associated with violent atmospheric storms at sea 
D) An event that always occurs at river mouths in shallow water, but does not extend into water more than 50 meters (165 feet)deep 
A) A fast dense current of water that carries sediments offshore 
B) The cause of mid-ocean trenches 
C) A phenomenon associated with violent atmospheric storms at sea 
D) An event that always occurs at river mouths in shallow water, but does not extend into water more than 50 meters (165 feet)deep

Question 18

The shelf break is the transition between the continental slope and the abyssal plains.

Accepted Answer

A) True 
 B)False

Question 19

Ocean trenches ____.

Accepted Answer

A) have submerged erosional features 
B) are arc-shaped depressions in the oceanic crust that occur at subduction zones 
C) consist of glacial troughs dating back to the Ice Age 
D) are erosional canyons cut by turbidity currents 
A) have submerged erosional features 
B) are arc-shaped depressions in the oceanic crust that occur at subduction zones 
C) consist of glacial troughs dating back to the Ice Age 
D) are erosional canyons cut by turbidity currents

Question 20

The Andes mountain range is an example of a(n)____.

Accepted Answer

A) ridge system 
B) island arc system 
C) passive margin 
D) active margin convergent zone 
A) ridge system 
B) island arc system 
C) passive margin 
D) active margin convergent zone

Passive continental margins line coasts that are far from tectonically active areas.

Trenches and island arcs are found at spreading centers.

The continental shelf is a ____.

Distinguish between active and passive continental margins.

The islands bordering deep-sea trenches are ____.

Flat-topped seamounts that rise from the ocean floor are called ____.

The Challenger expedition used multibeam echo sounders to contour the seafloor.

Scientists think that turbidity currents contribute to the formation of submarine canyons.

Active continental margins are located ____.

A seamount is a volcanic projection that does not rise above the surface.

What is the deepest feature in the ocean? Where is this feature located, and how did it form? Is this feature, and others like it, tectonically stable or tectonically active?

Hydrothermal vents are located near ____.

The deepest features in the ocean are ____.

Submarine canyons occur ____.

Submarine canyons ____.

What is a submarine canyon and how are they formed?

Which statement accurately describes a turbidity current?

The shelf break is the transition between the continental slope and the abyssal plains.

Ocean trenches ____.

The Andes mountain range is an example of a(n)____.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Uses and Abuses of the Ocean

Filters

Exam 4: Ocean Basins

Passive continental margins line coasts that are far from tectonically active areas.

Trenches and island arcs are found at spreading centers.

The continental shelf is a ____.

Distinguish between active and passive continental margins.

The islands bordering deep-sea trenches are ____.

Flat-topped seamounts that rise from the ocean floor are called ____.

The Challenger expedition used multibeam echo sounders to contour the seafloor.

Scientists think that turbidity currents contribute to the formation of submarine canyons.

Active continental margins are located ____.

A seamount is a volcanic projection that does not rise above the surface.

What is the deepest feature in the ocean? Where is this feature located, and how did it form? Is this feature, and others like it, tectonically stable or tectonically active?

Hydrothermal vents are located near ____.

The deepest features in the ocean are ____.

Submarine canyons occur ____.

Submarine canyons ____.

What is a submarine canyon and how are they formed?

Which statement accurately describes a turbidity current?

The shelf break is the transition between the continental slope and the abyssal plains.

Ocean trenches ____.

The Andes mountain range is an example of a(n)____.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Benthic Communities

Uses and Abuses of the Ocean

Filters