Glendale Community College » Oceanography » Ocean 115 - Introduction to Oceanography » Winter 2023

Ocean 115 - Introduction to Oceanography » Winter 2023 » 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. Density Stratification

B. Accretion

C. Nuclear fusion

D. Condensation

E. Compression

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Carbon dioxide and oxygen

B. Methane and ammonia

C. Carbon dioxide, water vapor and nitrogen

D. Oxygen and methane

E. Oxygen and nitrogen

Question #4

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

A. Anaerobic respiration by deep sea organisms

B. Chemcial break up of water vapor by sunlight

C. Formation of carbonic acid in the ocean

D. Fluctuation in cosmic ray

E. Production of oxygen from photosythesizing cyanobacteria

Question #5

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

A. Estuarine bays

B. Hydrothermal vents

C. Rainforest sediments

D. Dry mountain rocky outcrops

E. Polar sea ice

Question #6

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

A. Double sun

B. Optimum distance from star

C. Irregular orbit

D. Toxic atmosphere

E. Low gravity

Question #7

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

A. Condensation

B. Accretion

C. Plate Tectonics

D. Density Stratification

E. Subduction

Question #8

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

A. Excess atmospheric carbon dioxide

B. Large decrease in atmospheric carbon dioxide

C. Lack of free oxygen in the atmosphere

D. Proximity of the sun

E. The presence of a strong magnetic field

Question #9

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

A. Methane

B. Carbon dioxide

C. Fresh water

D. Oxygen

E. Saline 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. 180 degrees

B. 90 degrees

C. 15 degrees

D. 45 degrees

E. 30 degrees

Question #11

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

A. Conduction, Convection and Radiative

B. Convergence, Divergence and Transformative

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

D. Centripetal, Centrifugal and Convection currents

Question #12

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

A. Tectonic Theory

B. Density stratification

C. Continental Drift

D. Seismology

Question #13

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

B. Spread out

C. Stay the same

D. Rise

E. Sink

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. Isostatic equilibrium

C. Convection currents

E. Volcanoes

Question #15

Where is the youngest seafloor found?

A. Not enough information to tell

B. At continental marrgins where the seafllor abuts the continent

C. At mid-ocean ridges

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

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. Transform

B. Spreading center

C. Convergent

D. Divergent

Question #17

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

B. Divergent

C. Transform

D. Mid-ocean ridges

E. Subduction zones

Question #18

Which landscape is an example of a divergent boundary?

A. San Andreas

B. Mid-Atlantic Ridge

C. Aleutian Islands

D. Cascade Mountains

Question #19

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

A. Torque

B. Extension

C. Compression

D. Shear

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