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.   The sun
B.   Solar nebulae
C.   Volcanic activity and other planets
D.   Other planets
E.   Volcanic activitiy and comets
Question #2
The process by which stars form helium atoms from hydrogen is _______.,,
A.   Nuclear fusion
B.   Accretion
C.   Compression
D.   Condensation
E.   Density Stratification
Question #3
Earth’s early atmosphere contained high concentrations of ____.,,
A.   Oxygen and nitrogen
B.   Carbon dioxide, water vapor and nitrogen
C.   Carbon dioxide and oxygen
D.   Methane and ammonia
E.   Oxygen and methane
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.   Fluctuation in cosmic ray
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.   Polar sea ice
B.   Rainforest sediments
C.   Dry mountain rocky outcrops
D.   Hydrothermal vents
E.   Estuarine bays
Question #6
Which condition is necessary for a planet to have a permanent liquid ocean?,,
A.   Optimum distance from star
B.   Double sun
C.   Low gravity
D.   Irregular orbit
E.   Toxic atmosphere
Question #7
Through gravitational compression, Earth’s layers were formed by the process of ____.,,
A.   Plate Tectonics
B.   Density Stratification
C.   Condensation
D.   Subduction
E.   Accretion
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.   Proximity of the sun
D.   Large decrease in atmospheric carbon dioxide
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.   Methane
B.   Fresh water
C.   Oxygen
D.   Saline water
E.   Carbon dioxide
Question #10
If there is a three hour difference between ,,
A.   30 degrees
B.   180 degrees
C.   15 degrees
D.   45 degrees
E.   90 degrees

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