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.   Density Stratification
B.   Compression
C.   Accretion
D.   Nuclear fusion
E.   Condensation
Question #3
Earth’s early atmosphere contained high concentrations of ____.
A.   Carbon dioxide, water vapor and nitrogen
B.   Oxygen and methane
C.   Carbon dioxide and oxygen
D.   Methane and ammonia
E.   Oxygen and nitrogen
Question #4
What had the most influence in irreversibly changing Earth's atmosphere?
A.   Anaerobic respiration by deep sea organisms
B.   Chemcial break up of water vapor by sunlight
C.   Formation of carbonic acid in the ocean
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.   Hydrothermal vents
E.   Rainforest sediments
Question #6
Which condition is necessary for a planet to have a permanent liquid ocean?
A.   Irregular orbit
B.   Toxic atmosphere
C.   Low gravity
D.   Double sun
E.   Optimum distance from star
Question #7
Through gravitational compression, Earth’s layers were formed by the process of ____.
A.   Density Stratification
B.   Condensation
C.   Subduction
D.   Accretion
E.   Plate Tectonics
Question #8
What could ultimately be linked to the present absence of water on Mars?
A.   Excess atmospheric carbon dioxide
B.   The presence of a strong magnetic field
C.   Lack of free oxygen in the atmosphere
D.   Large decrease in 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.   Oxygen
B.   Methane
C.   Carbon dioxide
D.   Fresh water
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.   15 degrees
C.   45 degrees
D.   90 degrees
E.   180 degrees

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