Glendale Community College » Oceanography » Ocean 115 - Introduction to Oceanography » Winter 2022

Ocean 115 - Introduction to Oceanography » Winter 2022 » Week 1 Post-reading Quiz

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Question #1

The water for Earth’s ocean originated from __________.

A. Volcanic activity and other planets

B. Other planets

C. The sun

D. Solar nebulae

E. Volcanic activitiy and comets

Question #2

The process by which stars form helium atoms from hydrogen is _______.

A. Accretion

B. Nuclear fusion

C. Density Stratification

D. Condensation

E. Compression

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Oxygen and nitrogen

B. Carbon dioxide, water vapor and nitrogen

C. Carbon dioxide and oxygen

D. Oxygen and methane

E. Methane and ammonia

Question #4

What had the most influence in irreversibly changing Earth's atmosphere?

A. Chemcial break up of water vapor by sunlight

B. Formation of carbonic acid in the ocean

C. Production of oxygen from photosythesizing cyanobacteria

D. Anaerobic respiration by deep sea organisms

E. Fluctuation in cosmic ray

Question #5

Which extreme environment may have favored the origin of life on Earth?

A. Hydrothermal vents

B. Polar sea ice

C. Dry mountain rocky outcrops

D. Estuarine bays

E. Rainforest sediments

Question #6

Which condition is necessary for a planet to have a permanent liquid ocean?

A. Double sun

B. Irregular orbit

C. Low gravity

D. Toxic atmosphere

E. Optimum distance from star

Question #7

Through gravitational compression, Earth’s layers were formed by the process of ____.

A. Plate Tectonics

B. Subduction

C. Density Stratification

D. Condensation

E. Accretion

Question #8

What could ultimately be linked to the present absence of water on Mars?

A. Excess atmospheric carbon dioxide

B. The presence of a strong magnetic field

C. Large decrease in atmospheric carbon dioxide

D. Lack of free oxygen in the atmosphere

E. Proximity of the sun

Question #9

The dependence of all living cells on ____ to survive strongly suggests that simple, living molecules originated in the ocean.

A. Methane

B. Saline water

C. Oxygen

D. Carbon dioxide

E. Fresh water

Question #10

If there is a three hour difference between "clock" noon and "shaft" noon, how many degrees west are you from your point of origin? Assume one rotation of 360°/24 hours = 15°/hour.

A. 45 degrees

B. 90 degrees

C. 180 degrees

D. 15 degrees

E. 30 degrees

Question #11

Which option lists the three forces that cause the plates to move?

A. Centripetal, Centrifugal and Convection currents

B. Convergence, Divergence and Transformative

C. Convection in the mantle, slab pull and ridge push

D. Conduction, Convection and Radiative

Question #12

Which concept describes early Earth as separated into layers by gravity, with each deeper layer denser than the layer above?

A. Density stratification

B. Seismology

C. Continental Drift

D. Tectonic Theory

Question #13

As mountains erode, how will isostatic forces cause Earth's crust beneath the mountain to behave?

A. Spread out

B. Sink

C. Stay the same

D. Rise

Question #14

Oceanographers and seismologists further explored the theory of continental drift during the early- to mid-twentieth century by correlating patterns of earthquakes and ____.

A. Tectonic plates

B. Volcanoes

C. Isostatic equilibrium

D. Convection currents

Question #15

Where is the youngest seafloor found?

A. This is a trick questions. All the seafloor is the same age.

B. Not enough information to tell

C. At continental marrgins where the seafllor abuts the continent

D. At mid-ocean ridges

Question #16

The compressional movement of plate boundaries, such as observed at the Juan De Fuca plate, is representative of which type of boundary?

A. Convergent

B. Divergent

C. Spreading center

D. Transform

Question #17

At what type of Plate Boundary do earthquakes occur at multiple depths: shallow, intermediate and sometimes also deep?

A. Transform

B. Divergent

C. Subduction zones

D. Mid-ocean ridges

Question #18

Which landscape is an example of a divergent boundary?

A. San Andreas

B. Cascade Mountains

C. Aleutian Islands

D. Mid-Atlantic Ridge

Question #19

The lateral movement at transform boundaries causes what type of force?

A. Extension

B. Compression

C. Torque

D. Shear

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