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

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