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Exam 1 Practice. Click here to. Start Practice Test. OCNG 251-505. For more practice: Exam 1 Sample Questions Earth Origin PowerPoint Oceanography History PowerPoint Plate Tectonics PowerPoint A and B Marine Provinces PowerPoint Marine Sediments PowerPoint.

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exam 1 practice

Exam 1 Practice

Click here to

Start Practice Test

OCNG 251-505

For more practice:

Exam 1 Sample Questions

Earth Origin PowerPoint

Oceanography History PowerPoint

Plate Tectonics PowerPoint A and B

Marine Provinces PowerPoint

Marine Sediments PowerPoint

slide2
The magnetic pattern on the seafloor

a. is created by lava emerging at deep sea trenches

b. is symmetrical about and parallel to mid-ocean ridges

c. has been used to explain the cause of magnetic reversals

d. confirms the theory of continental drift

e. all of the above

slide4
The first voyage designed solely to collect oceanographic data was aboard the

a. Fram

b. Meteor

c. HMS Challenger

d. Pangaea

e. JOIDES Resolution

slide6
The seafloor

a. increases in age from the ridge outward

b. is oldest at the ridge

c. shows no systematic age pattern

slide8
Which of the following led the first voyage that circumnavigated the world?

a. Christopher Columbus

b. Vasco da Gama

c. Sir Francis Drake

d. Ferdinand Magellan

e. none of the above

slide10
Which important contribution did Benjamin Franklin make?

a. organized effort to produce accurate map of the Gulf Stream

b. described the relationship between coral reefs and volcanic islands

c. noted that rocks found on land must have formed in the ocean since they had seashells in them

d. made important observations about the chemistry of seawater

slide12
Which explorer sought to determine whether a continent existed near the North Pole?

a. James Cook

b. Fridtjof Nansen

c. Sir John Ross

d. John Cabot

e. Ferdinand Magellan

slide14
The primary evidence for the Big Bang is

a. the presence of many solar systems other than our own

b. the size of the planets within the solar system

c. the Milky Way

d. galaxies moving away from a central point

e. the age of the earth and moon

slide16
Continental crust is primarily made of

a. clay minerals

b. basalt

c. granite

d. phyllites and schists

e. carbonate sedimentary rocks

slide18
Oceanic crust is primarily made of

a. clay minerals

b. basalt

c. granite

d. phyllites and schists

e. carbonate sedimentary rocks

slide20
Which unique conditions appear to cause Earth to have oceans?

a. age

b. size

c. distance from Sun

d. presence of the moon

slide22
Free oxygen first accumulated in our atmosphere in significant amounts about _______ million years ago.

a. 2000

b. 200

c. 20

d. 2

slide24
Differences in height between continental crust and oceanic crust are explained by

a. isostasy

b. continental drift

c. paleomagnetism

d. ophiolites

slide26
Movement of particles as a P wave passes through can be best described as

a. compression and extension in the direction of the wave movement

b. compression and extension in a direction perpendicular to wave movement

c. shear motion perpendicular to the direction of wave movement

d. shear motion in the direction parallel to wave movement

slide28
Movement of particles as an S wave passes through can be best described as

a. compression and extension in the direction of the wave movement

b. compression and extension in a direction perpendicular to wave movement

c. shear motion perpendicular to the direction of wave movement

d. shear motion in the direction parallel to wave movement

slide30
Which of the following can be found at convergent plate boundaries on the seafloor?

a. crest of a mid-ocean ridge

b. offset of a mid-ocean ridge

c. deep sea trenches

d. fracture zones

slide32
Transform faults are _________ while fracture zones are ____________.

a. seismically active; aseismic

b. aseismic; seismically active

c. convergent; divergent

d. divergent; convergent

slide34
Which of the following is characteristic of oceanic-oceanic convergent plate boundaries?

a. volcanic island arcs

b. andesitic volcanoes

c. mid-ocean ridges

d. fracture zones

slide36
Which of the following is characteristic of oceanic-continental convergent plate boundaries?

a. volcanic island arcs

b. andesitic volcanoes

c. mid-ocean ridges

d. fracture zones

slide38
The gentlest slopes in the ocean can be found at the

a. continental slope

b. mid-ocean ridges

c. abyssal plains

d. continental shelf

slide40
Characteristics of passive continental margins include all of the following except

a. thick sediment accumulation

b. broad continental shelf

c. deep-sea trench

d. very little volcanic and earthquake activity

slide42
Characteristics of active continental margins include all of the following except

a. broad continental shelf

b. deep-sea trench

c. chains of islands

d. lots of volcanic and earthquake activity

e. thin sediment accumulation

slide44
Walking away from the shore toward the middle of the Atlantic Ocean, in what order would one find the following provinces?

a. slope, rise, shelf, abyssal plain

b. shelf, slope, rise, abyssal plain

c. abyssal plain, rise, slope, shelf

d. abyssal plain, shelf, slope, rise

slide46
Shelf break marks the boundary between the ________ and the __________.

a. shelf; rise

b. shelf; slope

c. shelf; abyssal plain

d. slope; rise

slide48
Sediments which are poorly sorted and made of a variety of minerals might have been deposited by

a. a volcanic eruption

b. the wind

c. a river

d. a turbidity current

slide50
Which of the following is made of calcium carbonate?

a. granite

b. basalt

c. diatoms

d. shark's teeth

e. foraminifera

slide52
Which of the following is made of silica?

a. phosphorites

b. corals

c. diatoms

d. foraminifera

e. coccolithophores

slide54
The most likely place to find abundant manganese nodules is

a. a continental shelf

b. an abyssal plain far from a continent

c. near the crest of a mid-ocean ridge

d. in the Atlantic Ocean basin

e. all of the above have abundant nodules

slide56
Sediments derived from preexisting rocks are called
  • lithogenous
  • biogenous

c. hydrogenous

d. cosmogenous

slide58
Sediments produced by plants and animals in the sea are called
  • lithogenous
  • biogenous

c. hydrogenous

d. cosmogenous

slide60
Sediments produced as a result of chemical reactions in seawater are called

a. lithogenous

b. biogenous

c. hydrogenous

d. cosmogenous

slide62
All of the following are terrestrial sediments except

a. clays

b. beach sand

c. diatom ooze

d. glacial deposits

e. volcanogenic particles

slide64
Biogenous sediments might be composed of all of the following except

a. coralline sands

b. diatoms

c. coccolithophores

d. foraminifera

e. red clay