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Aquatic Science Spring Final Review 2015 Part 2
Test Description: Final review for spring final 2015 / there are multiple parts to the final review
Instructions: Answer all questions to get your test result.
1) of organic origin; made by organisms
A
terrigenous sediments
B
biogenous sediments
C
hydrogenous sediments
2) arrive in the ocean from continents via rivers
A
biogenous sediments
B
hydrogenous sediments
C
terrigenous sediments
3) In volume and quantity, most marine sediments are associated with:
A
the continental slopes and rises
B
the edges of the deep trenches
C
the deep sea floor away from the continental slopes
D
mid-ocean ridges
4) The wavelengths of light that penetrate deepest into the ocean are:
A
red and violet
B
all wavelengths penetrate equally efficiently
C
green and blue
D
blue and brown
5) The densest seawater is the
A
saltiest
B
freshwest
C
coldest and saltiest
D
coldest
6) The most pronounced thermoclines exists in:
A
the temperate zones
B
the tropics
C
anywhere-it depends on water salinity
D
the polar regions
7) The speed of sound in water is ____________ the speed of sound in air.
A
sometimes lower, sometimes higher - depends of temperature of air and wter
B
greater than
C
lower than
D
about the same as
8) The term salinity refers to
A
the total amount of chloride ion in the water
B
the total amount of table salt dissolved in seawater
C
the total amount of dissolved solids in the ocean
D
the total amount of chlorine in the water
9) Once an element or dissolved substance reaches the ocean,
A
it may stay or be removed depending on the individual chemistry of the element
B
it will settle to the seafloor in less than 100 years
C
it will be removed quickly by activities of organisms
D
it will remain dissolved in the water forever
10) We can determine salinity if we know
A
the mass of the water sample
B
the exact color of the water sample
C
the density of the water sample
D
the chlorinity of the water sample
11) The salinity of the ocean, at the present time, seems to be
A
increasing due to pollution
B
decreasing due to several years of excessive rainfall
C
in equilibrium, with dissolved components entering equal to dissolved components leaving
D
increasing due to evaporation as the Earth warms up
12) Seasons are caused by
A
our being closer to the sun in summer
B
annual variation in energy output of the sun
C
the Earth's orbital tilt relative to the plane of its orbit around the sun
D
changes in the weather
13) The Coriolis effect causes objects moving in the northern hemisphere to veer off course
A
to the right, or clockwise when viewed from above
B
in an upward direction
C
to the left, or counterclockwise when viewed from above
D
in a downward direction
14) Winds generally move across the United States
A
from north to south
B
from east to west
C
from west to east
D
from south to north
15) A system of four currents completing a flow circuit around the periphery of an ocean basin is collectively called
A
a gimble
B
a Carroll pattern
C
a cell
D
a gyre
16) The immediate source of most of the energy for ocean currents is:
A
wind
B
weather
C
the tides
D
the sun
17) During an El Nino event,
A
the trade winds stregthen
B
a strong equatorial countercurrent develops in the Pacific
C
the central eastern Pacific ocean becomes cooler
D
sea level falls in the central eastern Pacific ocean
18) The main force driving thermohaline circulation is
A
wind
B
Coriolis effect
C
electromagnetic attraction
D
gravity
19) The distance measured from trough to trough of a wave is
A
the orbit
B
the wavelength
C
the wave height
D
the wave period
20) The period of wind waves is usually expressed in
A
feet or meters
B
any of the above
C
miles per hour, or kilometers per hour
D
seconds
*select an answer for all questions
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