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. The sun

C. Solar nebulae

D. Volcanic activity and other planets

E. Other planets

Question #2

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

A. Density Stratification

B. Accretion

C. Nuclear fusion

D. Compression

E. Condensation

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Carbon dioxide, water vapor and nitrogen

B. Carbon dioxide and oxygen

C. Oxygen and nitrogen

D. Oxygen and methane

E. Methane and ammonia

Question #4

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

A. Formation of carbonic acid in the ocean

B. Anaerobic respiration by deep sea organisms

C. Chemcial break up of water vapor by sunlight

D. Production of oxygen from photosythesizing cyanobacteria

E. Fluctuation in cosmic ray

Question #5

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

A. Polar sea ice

B. Estuarine bays

C. Dry mountain rocky outcrops

D. Rainforest sediments

E. Hydrothermal vents

Question #6

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

A. Optimum distance from star

B. Low gravity

C. Toxic atmosphere

D. Irregular orbit

E. Double sun

Question #7

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

A. Density Stratification

B. Plate Tectonics

C. Subduction

D. Accretion

E. Condensation

Question #8

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

A. The presence of a strong magnetic field

B. Large decrease in atmospheric carbon dioxide

C. Proximity of the sun

D. Excess 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. Methane

B. Oxygen

C. Fresh water

D. Carbon dioxide

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. 30 degrees

B. 90 degrees

C. 15 degrees

D. 180 degrees

E. 45 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. Conduction, Convection and Radiative

C. Convergence, Divergence and Transformative

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. Density stratification

B. Tectonic Theory

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. Stay the same

C. Spread out

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 ____.

B. Volcanoes

C. Convection currents

D. Isostatic equilibrium

E. Tectonic plates

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

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. Spreading center

B. Transform

C. Divergent

D. Convergent

Question #17

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

A. Transform

B. Mid-ocean ridges

D. Divergent

E. Subduction zones

Question #18

Which landscape is an example of a divergent boundary?

A. Aleutian Islands

B. Mid-Atlantic Ridge

C. Cascade Mountains

D. San Andreas

Question #19

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

A. Compression

B. Torque

C. Extension

D. Shear

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