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. Solar nebulae

B. Other planets

C. The sun

D. Volcanic activity and other planets

E. Volcanic activitiy and comets

Question #2

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

A. Nuclear fusion

B. Condensation

C. Compression

D. Density Stratification

E. Accretion

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Carbon dioxide and oxygen

B. Carbon dioxide, water vapor and nitrogen

C. Methane and ammonia

D. Oxygen and methane

E. Oxygen and nitrogen

Question #4

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

A. Fluctuation in cosmic ray

B. Production of oxygen from photosythesizing cyanobacteria

C. Anaerobic respiration by deep sea organisms

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. Rainforest sediments

B. Polar sea ice

C. Dry mountain rocky outcrops

D. Hydrothermal vents

E. Estuarine bays

Question #6

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

A. Irregular orbit

B. Toxic atmosphere

C. Optimum distance from star

D. Low gravity

E. Double sun

Question #7

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

A. Accretion

B. Plate Tectonics

C. Condensation

D. Density Stratification

E. Subduction

Question #8

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

A. The presence of a strong magnetic field

B. Excess atmospheric carbon dioxide

C. Proximity of the sun

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. Carbon dioxide

B. Methane

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. 30 degrees

B. 180 degrees

C. 90 degrees

D. 45 degrees

E. 15 degrees

Question #11

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

A. Convergence, Divergence and Transformative

B. Centripetal, Centrifugal and Convection currents

C. Conduction, Convection and Radiative

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. Continental Drift

B. Density stratification

C. Seismology

D. Tectonic Theory

Question #13

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

A. Stay the same

B. Spread out

C. Rise

D. 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. Convection currents

B. Isostatic equilibrium

C. Tectonic plates

E. Volcanoes

Question #15

Where is the youngest seafloor found?

A. Not enough information to tell

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

C. At continental marrgins where the seafllor abuts the continent

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. Transform

B. Convergent

C. Spreading center

D. Divergent

Question #17

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

A. Transform

B. Divergent

C. Subduction zones

D. Mid-ocean ridges

Question #18

Which landscape is an example of a divergent boundary?

A. Mid-Atlantic Ridge

B. Cascade Mountains

C. Aleutian Islands

D. San Andreas

Question #19

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

A. Extension

B. Compression

C. Shear

D. Torque

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