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.   The sun
C.   Solar nebulae
D.   Volcanic activitiy and comets
E.   Volcanic activity and other planets
Question #2
The process by which stars form helium atoms from hydrogen is _______.,,
A.   Accretion
B.   Condensation
C.   Compression
D.   Nuclear fusion
E.   Density Stratification
Question #3
Earth’s early atmosphere contained high concentrations of ____.,,
A.   Oxygen and methane
B.   Methane and ammonia
C.   Oxygen and nitrogen
D.   Carbon dioxide, water vapor and nitrogen
E.   Carbon dioxide and oxygen
Question #4
What had the most influence in irreversibly changing Earth's atmosphere?,,
A.   Fluctuation in cosmic ray
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.   Anaerobic respiration by deep sea organisms
Question #5
Which extreme environment may have favored the origin of life on Earth?,,
A.   Estuarine bays
B.   Polar sea ice
C.   Rainforest sediments
D.   Dry mountain rocky outcrops
E.   Hydrothermal vents
Question #6
Which condition is necessary for a planet to have a permanent liquid ocean?,,
A.   Low gravity
B.   Irregular orbit
C.   Optimum distance from star
D.   Double sun
E.   Toxic atmosphere
Question #7
Through gravitational compression, Earth’s layers were formed by the process of ____.,,
A.   Density Stratification
B.   Condensation
C.   Plate Tectonics
D.   Accretion
E.   Subduction
Question #8
What could ultimately be linked to the present absence of water on Mars?,,
A.   Proximity of the sun
B.   Large decrease in atmospheric carbon dioxide
C.   Excess atmospheric carbon dioxide
D.   Lack of free oxygen in the atmosphere
E.   The presence of a strong magnetic field
Question #9
The dependence of all living cells on ____ to survive strongly suggests that simple, living molecules originated in the ocean.,,
A.   Saline water
B.   Methane
C.   Carbon dioxide
D.   Oxygen
E.   Fresh water
Question #10
If there is a three hour difference between ,,
A.   15 degrees
B.   30 degrees
C.   90 degrees
D.   180 degrees
E.   45 degrees

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