Ocean 115 - Introduction to Oceanography » Spring 2023 » Week 2 Post-reading Quiz

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Question #1
The water for Earth’s ocean originated from __________.
A.   Volcanic activity and other planets
B.   Other planets
C.   Solar nebulae
D.   Volcanic activitiy and comets
E.   The sun
Question #2
The process by which stars form helium atoms from hydrogen is _______.
A.   Nuclear fusion
B.   Compression
C.   Condensation
D.   Accretion
E.   Density Stratification
Question #3
Earth’s early atmosphere contained high concentrations of ____.
A.   Carbon dioxide and oxygen
B.   Methane and ammonia
C.   Oxygen and methane
D.   Oxygen and nitrogen
E.   Carbon dioxide, water vapor and nitrogen
Question #4
What had the most influence in irreversibly changing Earth's atmosphere?
A.   Chemcial break up of water vapor by sunlight
B.   Fluctuation in cosmic ray
C.   Anaerobic respiration by deep sea organisms
D.   Production of oxygen from photosythesizing cyanobacteria
E.   Formation of carbonic acid in the ocean
Question #5
Which extreme environment may have favored the origin of life on Earth?
A.   Polar sea ice
B.   Hydrothermal vents
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.   Irregular orbit
C.   Low gravity
D.   Toxic atmosphere
E.   Optimum distance from star
Question #7
Through gravitational compression, Earth’s layers were formed by the process of ____.
A.   Plate Tectonics
B.   Condensation
C.   Subduction
D.   Density Stratification
E.   Accretion
Question #8
What could ultimately be linked to the present absence of water on Mars?
A.   Large decrease in atmospheric carbon dioxide
B.   Excess atmospheric carbon dioxide
C.   Lack of free oxygen in the atmosphere
D.   The presence of a strong magnetic field
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.   Saline water
B.   Carbon dioxide
C.   Methane
D.   Fresh water
E.   Oxygen
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.   15 degrees
B.   180 degrees
C.   90 degrees
D.   30 degrees
E.   45 degrees

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