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. Other planets

B. The sun

C. Volcanic activitiy and comets

D. Volcanic activity and other planets

E. Solar nebulae

Question #2

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

A. Nuclear fusion

B. Density Stratification

C. Condensation

D. Accretion

E. Compression

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Oxygen and methane

B. Methane and ammonia

C. Carbon dioxide and oxygen

D. Oxygen and nitrogen

E. Carbon dioxide, water vapor and nitrogen

Question #4

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

A. Anaerobic respiration by deep sea organisms

B. Fluctuation in cosmic ray

C. Production of oxygen from photosythesizing cyanobacteria

D. Formation of carbonic acid in the ocean

E. Chemcial break up of water vapor by sunlight

Question #5

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

A. Estuarine bays

B. Hydrothermal vents

C. Polar sea ice

D. Dry mountain rocky outcrops

E. Rainforest sediments

Question #6

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

A. Irregular orbit

B. Double sun

C. Toxic atmosphere

D. Optimum distance from star

E. Low gravity

Question #7

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

A. Accretion

B. Subduction

C. Density Stratification

D. Plate Tectonics

E. Condensation

Question #8

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

A. Excess atmospheric carbon dioxide

B. Lack of free oxygen in the atmosphere

C. Large decrease in atmospheric carbon dioxide

D. The presence of a strong magnetic field

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. Saline water

B. Fresh water

C. Oxygen

D. Carbon dioxide

E. Methane

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. 15 degrees

C. 45 degrees

D. 90 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. Centripetal, Centrifugal and Convection currents

C. Conduction, Convection and Radiative

D. Convergence, Divergence and Transformative

Question #12

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

A. Seismology

B. Continental Drift

C. Tectonic Theory

D. Density stratification

Question #13

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

A. Stay the same

B. Sink

D. Rise

E. Spread out

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 ____.

B. Volcanoes

C. Tectonic plates

D. Isostatic equilibrium

E. Convection currents

Question #15

Where is the youngest seafloor found?

A. Not enough information to tell

B. At mid-ocean ridges

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. 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. Subduction zones

B. Transform

D. Mid-ocean ridges

E. Divergent

Question #18

Which landscape is an example of a divergent boundary?

A. Mid-Atlantic Ridge

B. Aleutian Islands

C. San Andreas

D. Cascade Mountains

Question #19

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

A. Shear

B. Compression

C. Torque

D. Extension

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