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 activitiy and comets

B. Solar nebulae

C. Volcanic activity and other planets

D. Other planets

E. The sun

Question #2

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

A. Accretion

B. Condensation

C. Nuclear fusion

D. Compression

E. Density Stratification

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Carbon dioxide, water vapor and nitrogen

B. Methane and ammonia

C. Oxygen and methane

D. Oxygen and nitrogen

E. Carbon dioxide and oxygen

Question #4

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

A. Fluctuation in cosmic ray

B. Formation of carbonic acid in the ocean

C. Chemcial break up of water vapor by sunlight

D. Anaerobic respiration by deep sea organisms

E. Production of oxygen from photosythesizing cyanobacteria

Question #5

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

A. Polar sea ice

B. Rainforest sediments

C. Hydrothermal vents

D. Estuarine bays

E. Dry mountain rocky outcrops

Question #6

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

A. Optimum distance from star

B. Irregular orbit

C. Low gravity

D. Double sun

E. Toxic atmosphere

Question #7

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

A. Condensation

B. Plate Tectonics

C. Density Stratification

D. Subduction

E. Accretion

Question #8

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

A. Proximity of the sun

B. Excess atmospheric carbon dioxide

C. The presence of a strong magnetic field

D. Large decrease in atmospheric carbon dioxide

E. Lack of free oxygen in the atmosphere

Question #9

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

A. Fresh water

B. Oxygen

C. Saline water

D. Methane

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. 180 degrees

B. 30 degrees

C. 45 degrees

D. 90 degrees

E. 15 degrees

Question #11

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

A. Conduction, Convection and Radiative

B. Centripetal, Centrifugal and Convection currents

C. Convergence, Divergence and Transformative

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

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. Tectonic Theory

C. Density stratification

D. Continental Drift

Question #13

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

A. Sink

B. Spread out

C. Rise

E. 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. Volcanoes

B. Convection currents

D. Tectonic plates

E. Isostatic equilibrium

Question #15

Where is the youngest seafloor found?

A. At mid-ocean ridges

B. At continental marrgins where the seafllor abuts the continent

C. Not enough information to tell

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. Convergent

B. Transform

C. Divergent

D. Spreading center

Question #17

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

A. Divergent

B. Transform

D. Mid-ocean ridges

E. Subduction zones

Question #18

Which landscape is an example of a divergent boundary?

A. Cascade Mountains

B. San Andreas

C. Aleutian Islands

D. Mid-Atlantic Ridge

Question #19

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

A. Shear

B. Torque

C. Compression

D. Extension

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