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.   The sun
B.   Volcanic activity and other planets
C.   Other planets
D.   Volcanic activitiy and comets
E.   Solar nebulae
Question #2
The process by which stars form helium atoms from hydrogen is _______.
A.   Accretion
B.   Nuclear fusion
C.   Condensation
D.   Density Stratification
E.   Compression
Question #3
Earth’s early atmosphere contained high concentrations of ____.
A.   Oxygen and nitrogen
B.   Methane and ammonia
C.   Carbon dioxide and oxygen
D.   Oxygen and methane
E.   Carbon dioxide, water vapor 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.   Production of oxygen from photosythesizing cyanobacteria
D.   Formation of carbonic acid in the ocean
E.   Fluctuation in cosmic ray
Question #5
Which extreme environment may have favored the origin of life on Earth?
A.   Hydrothermal vents
B.   Rainforest sediments
C.   Estuarine bays
D.   Polar sea ice
E.   Dry mountain rocky outcrops
Question #6
Which condition is necessary for a planet to have a permanent liquid ocean?
A.   Low gravity
B.   Double sun
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.   Condensation
B.   Density Stratification
C.   Accretion
D.   Plate Tectonics
E.   Subduction
Question #8
What could ultimately be linked to the present absence of water on Mars?
A.   Excess atmospheric carbon dioxide
B.   Large decrease in atmospheric carbon dioxide
C.   The presence of a strong magnetic field
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.   Carbon dioxide
B.   Methane
C.   Oxygen
D.   Saline water
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.   45 degrees
B.   90 degrees
C.   180 degrees
D.   30 degrees
E.   15 degrees

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