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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
hydrogenous sediments
B
terrigenous sediments
C
biogenous 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
mid-ocean ridges
B
the continental slopes and rises
C
the edges of the deep trenches
D
the deep sea floor away from the continental slopes
4) The wavelengths of light that penetrate deepest into the ocean are:
A
blue and brown
B
green and blue
C
red and violet
D
all wavelengths penetrate equally efficiently
5) The densest seawater is the
A
saltiest
B
coldest
C
coldest and saltiest
D
freshwest
6) The most pronounced thermoclines exists in:
A
anywhere-it depends on water salinity
B
the temperate zones
C
the tropics
D
the polar regions
7) The speed of sound in water is ____________ the speed of sound in air.
A
greater than
B
lower than
C
about the same as
D
sometimes lower, sometimes higher - depends of temperature of air and wter
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 chlorine in the water
D
the total amount of dissolved solids in the ocean
9) Once an element or dissolved substance reaches the ocean,
A
it will remain dissolved in the water forever
B
it will be removed quickly by activities of organisms
C
it will settle to the seafloor in less than 100 years
D
it may stay or be removed depending on the individual chemistry of the element
10) We can determine salinity if we know
A
the mass of the water sample
B
the chlorinity of the water sample
C
the exact color of the water sample
D
the density of the water sample
11) The salinity of the ocean, at the present time, seems to be
A
in equilibrium, with dissolved components entering equal to dissolved components leaving
B
increasing due to pollution
C
increasing due to evaporation as the Earth warms up
D
decreasing due to several years of excessive rainfall
12) Seasons are caused by
A
our being closer to the sun in summer
B
the Earth's orbital tilt relative to the plane of its orbit around the sun
C
changes in the weather
D
annual variation in energy output of the sun
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 a downward direction
C
in an upward direction
D
to the left, or counterclockwise when viewed from above
14) Winds generally move across the United States
A
from east to west
B
from north to south
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 cell
B
a gyre
C
a gimble
D
a Carroll pattern
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 central eastern Pacific ocean becomes cooler
B
sea level falls in the central eastern Pacific ocean
C
a strong equatorial countercurrent develops in the Pacific
D
the trade winds stregthen
18) The main force driving thermohaline circulation is
A
electromagnetic attraction
B
wind
C
gravity
D
Coriolis effect
19) The distance measured from trough to trough of a wave is
A
the orbit
B
the wavelength
C
the wave period
D
the wave height
20) The period of wind waves is usually expressed in
A
feet or meters
B
seconds
C
any of the above
D
miles per hour, or kilometers per hour
*select an answer for all questions
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