Ocean 115 - Introduction to Oceanography » Spring 2021 » 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.   Compression
C.   Density Stratification
D.   Nuclear fusion
E.   Condensation
Question #3
Earth’s early atmosphere contained high concentrations of ____.,,
A.   Oxygen and nitrogen
B.   Carbon dioxide and oxygen
C.   Oxygen and methane
D.   Carbon dioxide, water vapor and nitrogen
E.   Methane and ammonia
Question #4
What had the most influence in irreversibly changing Earth's atmosphere?,,
A.   Formation of carbonic acid in the ocean
B.   Anaerobic respiration by deep sea organisms
C.   Fluctuation in cosmic ray
D.   Production of oxygen from photosythesizing cyanobacteria
E.   Chemcial break up of water vapor by sunlight
Question #5
Which extreme environment may have favored the origin of life on Earth?,,
A.   Estuarine bays
B.   Dry mountain rocky outcrops
C.   Polar sea ice
D.   Hydrothermal vents
E.   Rainforest sediments
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.   Irregular orbit
E.   Toxic atmosphere
Question #7
Through gravitational compression, Earth’s layers were formed by the process of ____.,,
A.   Accretion
B.   Density Stratification
C.   Plate Tectonics
D.   Subduction
E.   Condensation
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.   Proximity of the sun
D.   Large decrease in atmospheric carbon dioxide
E.   Lack of free oxygen in the atmosphere
Question #9
The dependence of all living cells on ____ to survive strongly suggests that simple, living molecules originated in the ocean.,,
A.   Fresh water
B.   Oxygen
C.   Saline water
D.   Carbon dioxide
E.   Methane
Question #10
If there is a three hour difference between ,,
A.   45 degrees
B.   30 degrees
C.   90 degrees
D.   15 degrees
E.   180 degrees

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