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. Volcanic activitiy and comets

D. Solar nebulae

E. The sun

Question #2

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

A. Nuclear fusion

B. Compression

C. Condensation

D. Density Stratification

E. Accretion

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Oxygen and methane

B. Oxygen and nitrogen

C. Carbon dioxide, water vapor and nitrogen

D. Carbon dioxide and oxygen

E. Methane and ammonia

Question #4

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

A. Fluctuation in cosmic ray

B. Anaerobic respiration by deep sea organisms

C. Chemcial break up of water vapor by sunlight

D. Production of oxygen from photosythesizing cyanobacteria

E. Formation of carbonic acid in the ocean

Question #5

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

A. Polar sea ice

B. Dry mountain rocky outcrops

C. Hydrothermal vents

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. Optimum distance from star

C. Toxic atmosphere

D. Low gravity

E. Irregular orbit

Question #7

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

A. Density Stratification

B. Condensation

C. Plate Tectonics

D. Subduction

E. Accretion

Question #8

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

A. Lack of free oxygen in the atmosphere

B. The presence of a strong magnetic field

C. Proximity of the sun

D. Excess atmospheric carbon dioxide

E. Large decrease in atmospheric carbon dioxide

Question #9

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

A. Oxygen

B. Saline water

C. Methane

D. Fresh water

E. Carbon dioxide

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. 90 degrees

B. 45 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. Convection in the mantle, slab pull and ridge push

B. Convergence, Divergence and Transformative

C. Conduction, Convection and Radiative

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. Seismology

D. Continental Drift

Question #13

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

A. Rise

B. Spread out

C. Sink

D. Stay the same

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. Isostatic equilibrium

C. Tectonic plates

D. Volcanoes

E. Convection currents

Question #15

Where is the youngest seafloor found?

A. At mid-ocean ridges

B. Not enough information to tell

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

D. At continental marrgins where the seafllor abuts the continent

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. Spreading center

B. Divergent

C. Convergent

D. Transform

Question #17

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

A. Subduction zones

B. Transform

C. Mid-ocean ridges

D. Divergent

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. Shear

B. Compression

C. Extension

D. Torque

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