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Earth Science Ch 15 & 16: Earth's Oceans & Marine Environment Flashcards | StudBud
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Earth Science Ch 15 & 16: Earth's Oceans & Marine Environment
Earth Science Ch 15 & 16: Earth's Oceans & Marine Environment
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#oceans #marineenvironment #earthscience #science #marine
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1
What is the term used for the scientific study of Earth's oceans?
oceanography
meteorology
geography
scientology
2
About what percentage of seawater is dissolved salts?
9.65%
35%
96.5%
3.5%
3
In Earth's early history, water vapor in the atmosphere condensed into the
mountains.
continents.
oceans.
crust.
4
Oceans on Earth have existed for
almost 4.6 billion years.
half as long as Earth has existed.
4.6 million years.
46 billion years.
5
Determines the speed at which waves move through water
wave height
density current
wave length
tidal range
6
What unit is commonly used to measure the salt content of water?
parts per liter
parts per thousand
kilograms per cubic liter
grams per liter
7
What is the highest point of a wave called?
crest
trough
breaker
wave tip
8
Closed, circular current systems
breakers
upwellings
seamounts
gyres
9
A measure of the amount of dissolved salts in seawater
thermocline
manganese
sea level
salinity
10
What is salinity?
the amount of dissolved gases in seawater
the amount of dissolved salts in seawater
another name for salt
the amount of water in the oceans
11
What is the lowest point of a wave called?
breaker
crest
wave bend
trough
12
A device that uses echoes to map features of the ocean floor is called a(n)
radar.
OSTM/Jason-2.
satellite.
sonar.
13
Current caused by differences in the temperature & salinity of ocean water
wave current
tidal current
density current
surface current
14
Collapsing waves
breakers
upwellings
crests
tides
15
The first ship to use sophisticated measuring devices to study the ocean was named
Titantic.
Challenger.
My Girl.
Alvin.
16
Type of tide with the highest high tides & lowest low tides
tidal range
tide
neap tide
spring tide
17
Type of tide that occurs when the Sun, the Moon, & Earth form a right angle
spring tide
tide
tidal range
neap tide
18
Rhythmic movement that carries energy through matter
breaker
turbidity current
thermocline
wave
19
What is the name of the deepest place on the sea floor?
the Submarine Canyon
the Mariana Trench
the Abyssal Plain
the Polynesian Trench
20
The periodic rise and fall of sea level
neap tide
tide
gravitational & centrifugal forces
spring tide
21
Oceans have distinct layers of water masses that are characterized by
salinity & nutrient composition.
location & depth.
temperature & nutrient composition.
temperature & salinity.
22
Current caused by wind
density currents
upwellings
deep-ocean currents
surface currents
23
Transitional layer of the ocean characterized by rapidly decreasing temperatures with depth
surface layer
bottom layer
thermocline
upwelling
24
Level of the ocean's surface
fetch
temperature profile
sea level
tidal range
25
Forces exerted by the Sun & the Moon that generate tidal bulges
gravitational & centrifugal forces
spring tide
tide
neap tide
26
Depositional coastal landforms are
made of sedimentary rock.
made up of bones and shell of once living organisms
solid and stable.
temporary and unstable.
