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.   The sun
D.   Solar nebulae
E.   Volcanic activitiy and comets
Question #2
The process by which stars form helium atoms from hydrogen is _______.
A.   Accretion
B.   Density Stratification
C.   Nuclear fusion
D.   Compression
E.   Condensation
Question #3
Earth’s early atmosphere contained high concentrations of ____.
A.   Oxygen and nitrogen
B.   Methane and ammonia
C.   Carbon dioxide, water vapor and nitrogen
D.   Oxygen and methane
E.   Carbon dioxide and oxygen
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.   Chemcial break up of water vapor by sunlight
D.   Fluctuation in cosmic ray
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.   Dry mountain rocky outcrops
D.   Rainforest sediments
E.   Estuarine bays
Question #6
Which condition is necessary for a planet to have a permanent liquid ocean?
A.   Double sun
B.   Low gravity
C.   Optimum distance from star
D.   Toxic atmosphere
E.   Irregular orbit
Question #7
Through gravitational compression, Earth’s layers were formed by the process of ____.
A.   Subduction
B.   Plate Tectonics
C.   Condensation
D.   Density Stratification
E.   Accretion
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.   Large decrease in atmospheric carbon dioxide
D.   Lack of free oxygen in the atmosphere
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.   Methane
B.   Fresh water
C.   Oxygen
D.   Carbon dioxide
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.   45 degrees
B.   30 degrees
C.   15 degrees
D.   180 degrees
E.   90 degrees

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