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. Volcanic activity and other planets

C. The sun

D. Solar nebulae

E. Other planets

Question #2

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

A. Compression

B. Accretion

C. Density Stratification

D. Nuclear fusion

E. Condensation

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Oxygen and nitrogen

B. Carbon dioxide and oxygen

C. Oxygen and methane

D. Carbon dioxide, water vapor and nitrogen

E. Methane and ammonia

Question #4

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

A. Production of oxygen from photosythesizing cyanobacteria

B. Anaerobic respiration by deep sea organisms

C. Fluctuation in cosmic ray

D. Chemcial break up of water vapor by sunlight

E. Formation of carbonic acid in the ocean

Question #5

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

A. Dry mountain rocky outcrops

B. Estuarine bays

C. Polar sea ice

D. Hydrothermal vents

E. Rainforest sediments

Question #6

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

A. Optimum distance from star

B. Low gravity

C. Double sun

D. Toxic atmosphere

E. Irregular orbit

Question #7

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

A. Condensation

B. Subduction

C. Accretion

D. Plate Tectonics

E. Density Stratification

Question #8

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

A. Large decrease in atmospheric carbon dioxide

B. Lack of free oxygen in the atmosphere

C. The presence of a strong magnetic field

D. Excess atmospheric carbon dioxide

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. Fresh water

B. Saline water

C. Carbon dioxide

D. Oxygen

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. 30 degrees

B. 15 degrees

C. 45 degrees

D. 180 degrees

E. 90 degrees

Question #11

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

A. Centripetal, Centrifugal and Convection currents

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

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. Tectonic Theory

B. Continental Drift

C. Density stratification

D. Seismology

Question #13

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

A. Spread out

B. Rise

C. Stay the same

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. Convection currents

C. Volcanoes

D. Tectonic plates

E. Isostatic equilibrium

Question #15

Where is the youngest seafloor found?

A. At continental marrgins where the seafllor abuts the continent

B. Not enough information to tell

C. At mid-ocean ridges

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. Spreading center

B. Convergent

C. Transform

D. Divergent

Question #17

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

A. Mid-ocean ridges

B. Transform

D. Subduction zones

E. Divergent

Question #18

Which landscape is an example of a divergent boundary?

A. Cascade Mountains

B. Aleutian Islands

C. Mid-Atlantic Ridge

D. San Andreas

Question #19

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

A. Torque

B. Compression

C. Extension

D. Shear

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