Ocean Circulation — Unit test Answers

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1
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Which feature separates watersheds?

A
basins
B
bays
C
ridges
D
rivers
2
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A 2-column table with 4 rows. The first column labeled wave has entries W, X, Y, Z. The second column labeled Observations has entries its motion is perpendicular to wave motion, its particles move up and down, its particles only move small amounts, its motion is parallel to wave motion.

Question illustration
A
Waves W and Y are transverse waves, Wave X could be a longitudinal or transverse wave, and Wave Z is a longitudinal wave.
B
Waves W and Y are longitudinal waves, Wave X could be a longitudinal or transverse wave, and Wave Z is a transverse wave.
C
Waves W and X are longitudinal waves, Wave Y could be a longitudinal or transverse wave, and Wave Z is a transverse wave.
D
Waves W and X are transverse waves, Wave Y could be a longitudinal or transverse wave, and Wave Z is a longitudinal wave.
3

Which is one benefit that mangrove trees provide to surrounding coastal wetlands?

A
They hold soil in place.
B
They store floodwaters.
C
They maintain surface water flow.
D
They filter water and improve water quality.
4

What is common between transverse waves and longitudinal waves?

A
Both include an amplitude, crest, and rarefactions
B
Both move faster at higher temperatures
C
Both move slower through densely packed molecules
D
Both include a wavelength from compression to compression
5

A scientist observes a geyser erupting. Which two objects must be interacting beneath the surface?

A
well and spring
B
spring and magma
C
magma and groundwater
D
groundwater and unsaturated zone
6

In which direction does wave energy travel in the ocean?

A
up and down
B
north and south
C
with the currents
D
toward the shore
7

Which statement can be made about the amplitude of any transverse wave?

A
It is the length from the midpoint to the crest.
B
It is half the length from the midpoint to the trough.
C
It is the length of the wavelength.
D
It is half the length of the wavelength.
8

In which direction of the wave motion do longitudinal waves transfer energy?

A
perpendicular
B
parallel
C
close
D
equal
9

Energy output readings from tidal power plants in the ocean are low one day compared to the rest of the month.Which event is the most likely cause?

A
neap tides
B
rip currents
C
light winds
D
spring tides
10

Which relatively flat feature of the ocean floor is in the open ocean and borders the continental shelf?

A
abyssal plain
B
mid-ocean ridge
C
continental slope
D
deep-ocean trench
11

Where does warm water accumulate in the Pacific Ocean during El Niño?

A
the east
B
the south
C
the north
D
the west
13

Which statement explains one way that lakes form?

A
Lava flows block a river.
B
Streams flow into shallow areas.
C
Groundwater feeds into low-lying areas.
D
Grassy wetlands get covered by a stream.
15

Why is the unsaturated zone not filled with water?

A
It is below the water table and water stays above it.
B
It is clay and water pools above it.
C
It is granite and water flows around it.
D
It is permeable and water flows through it.
16

Study this map.

Question illustration
A
1
B
2
C
3
D
4
17

Levi observed properties of three different waves and recorded observations about each one in his chart.

Question illustration
A
Wave W and Y are light waves. Wave X is a sound wave.
B
Wave W is a light wave.Waves X and Y are sound waves.
C
Waves Y is a sound wave. Waves X and W are light waves.
D
Wave W is a sound wave. Waves X and Y are light waves.
18

Which describes one feature of deep ocean currents?

A
have lower-salinity water
B
carry warm water from the equator
C
have higher-temperature water
D
move more slowly than surface currents
19

What percentage of Earth’s water is fresh water?

A
3 percent
B
25 percent
C
75 percent
D
97 percent
20

Which do sound waves travel fastest through?

A
solids
B
gases
C
mixtures
D
liquids
21

Which part of the shallow ocean descends sharply away from the continental shelf?

A
abyssal plain
B
mid-ocean ridge
C
transitional zone
D
continental slope

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