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. The sun

B. Other planets

C. Volcanic activitiy and comets

D. Solar nebulae

E. Volcanic activity and other planets

Question #2

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

A. Condensation

B. Nuclear fusion

C. Accretion

D. Compression

E. Density Stratification

Question #3

Earth’s early atmosphere contained high concentrations of ____.

A. Methane and ammonia

B. Carbon dioxide, water vapor and nitrogen

C. Carbon dioxide and oxygen

D. Oxygen and nitrogen

E. Oxygen and methane

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. Production of oxygen from photosythesizing cyanobacteria

E. Anaerobic respiration by deep sea organisms

Question #5

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

A. Hydrothermal vents

B. Polar sea ice

C. Rainforest sediments

D. Dry mountain rocky outcrops

E. Estuarine bays

Question #6

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

A. Double sun

B. Toxic atmosphere

C. Low gravity

D. Irregular orbit

E. Optimum distance from star

Question #7

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

A. Condensation

B. Accretion

C. Plate Tectonics

D. Subduction

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. The presence of a strong magnetic field

C. Lack of free oxygen in the atmosphere

D. Proximity of the sun

E. Excess atmospheric carbon dioxide

Question #9

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

A. Oxygen

B. Saline water

C. Carbon dioxide

D. Methane

E. Fresh 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. 15 degrees

D. 45 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. Density stratification

C. Continental Drift

D. Seismology

Question #13

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

B. Spread out

C. Stay the same

D. Rise

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 ____.

A. Tectonic plates

C. Volcanoes

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. At continental marrgins where the seafllor abuts the continent

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. Divergent

B. Transform

C. Subduction zones

E. Mid-ocean ridges

Question #18

Which landscape is an example of a divergent boundary?

A. Aleutian Islands

B. San Andreas

C. Mid-Atlantic Ridge

D. Cascade Mountains

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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