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.   Other planets
B.   Volcanic activitiy and comets
C.   Volcanic activity and other planets
D.   Solar nebulae
E.   The sun
Question #2
The process by which stars form helium atoms from hydrogen is _______.,,
A.   Accretion
B.   Nuclear fusion
C.   Density Stratification
D.   Condensation
E.   Compression
Question #3
Earth’s early atmosphere contained high concentrations of ____.,,
A.   Carbon dioxide, water vapor and nitrogen
B.   Oxygen and nitrogen
C.   Carbon dioxide and oxygen
D.   Oxygen and methane
E.   Methane and ammonia
Question #4
What had the most influence in irreversibly changing Earth's atmosphere?,,
A.   Production of oxygen from photosythesizing cyanobacteria
B.   Chemcial break up of water vapor by sunlight
C.   Anaerobic respiration by deep sea organisms
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.   Estuarine bays
B.   Rainforest sediments
C.   Polar sea ice
D.   Dry mountain rocky outcrops
E.   Hydrothermal vents
Question #6
Which condition is necessary for a planet to have a permanent liquid ocean?,,
A.   Toxic atmosphere
B.   Low gravity
C.   Double sun
D.   Irregular orbit
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.   Accretion
E.   Density Stratification
Question #8
What could ultimately be linked to the present absence of water on Mars?,,
A.   Excess atmospheric carbon dioxide
B.   Lack of free oxygen in the atmosphere
C.   Large decrease in atmospheric carbon dioxide
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.   Carbon dioxide
B.   Fresh water
C.   Oxygen
D.   Saline water
E.   Methane
Question #10
If there is a three hour difference between ,,
A.   15 degrees
B.   90 degrees
C.   45 degrees
D.   180 degrees
E.   30 degrees

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