AnswersPARTA - EOP PGCPS BIOGEOCHEM CR FALL2026 - 798113Ocean Water

Ocean Circulation Answers

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1
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Which event causes tides?

A
the blowing of the wind
B
the movement of warm and cool water
C
the interaction of the moon, the Sun, and Earth
D
the mixing of surface water and deep ocean water
2
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Which phrase describes the tidal range?

A
the cause for the rotation of wind in a circular pattern
B
the difference between levels of high tide and low tide
C
the water that flows away from the shore and moves sand with it
D
the difference between the times the high tide and low time come in
3

Which factor contributes to the formation of tides that turn turbines to create energy in the ocean?

A
wind speed
B
water density
C
Earth’s rotation
D
water temperature
4

Which ocean movement do power plants use to produce usable energy?

A
currents
B
drifts
C
tides
D
tsunamis
5

Which phenomenon causes oceans to bulge?

A
the blowing wind
B
the Coriolis effect
C
the moon’s gravity
D
the rotation of Earth
6

Ocean circulation is the large-scale movement of water in the ocean. It involves the transport of heat through convection, which is the movement of heat through liquids and gases.Which statement describes how convection moves heat in the ocean during non-El Niño (normal) years?

A
Convection moves heat toward the west.
B
Convection moves heat toward the east.
C
Convection moves heat toward the north.
D
Convection moves heat toward the south.
7

Convection refers to the movement of heat through a fluid, such as water. Which best describes one way that convection influences the circulation of ocean water?

A
Cold water at the surface flows toward the poles and sinks as it cools.
B
Deep, warm water flows toward the equator and rises as it cools.
C
Warm water at the surface flows toward the poles and sinks as it cools.
D
Deep, cold water flows toward the equator and rises as it cools.
8

Which factor drives surface ocean currents?

A
wind energy
B
solar energy
C
pull of the moon
D
movement of turbines
9

How frequently do most coastal areas experience high tides?

A
twice a day
B
twice a month
C
four times a day
D
four times a month
10

When will the waves at the shore be the smallest and calmest?

A
when the tide is receding
B
when upwelling occurs
C
when the wind is not blowing
D
when the tide is coming in
11

Which source provides the energy that causes most waves to form?

A
currents
B
earthquakes
C
sunlight
D
wind
12

Why are electrical outputs from a turbine generator highest during a spring tide?

A
A high tide comes in faster.
B
The gravitational pull of the moon is less.
C
The Sun and the moon pull in opposite directions.
D
The difference between high tide and low tide is the greatest.
13

Which phrase best describes surface currents?

A
up-and-down ocean movement caused by wind
B
waves that hit the shore at an angle and transport sand
C
streams of warm water flowing through the ocean and caused by wind
D
waves that approach the shore and cause their crests to fall into their troughs
14

Which two words identify the scientific parts of a wave?

A
breaker and crest
B
crest and trough
C
current and breaker
D
drift and current
15

Which statement explains what upwelling causes?

A
Upwelling causes tides to rise and fall.
B
Upwelling causes changes in the direction of currents.
C
Upwelling causes nutrients, minerals, and tiny organisms to rise.
D
Upwelling causes currents in the Pacific Ocean to change direction.
16

Which phrase describes neap tides?

A
occur four times a day
B
produce extra-low tidal ranges
C
caused only by the pull of the moon
D
occur at the same time as spring tides
17

Which event causes tides?

A
the blowing of the wind
B
the movement of warm and cool water
C
the interaction of the moon, the Sun, and Earth
D
the mixing of surface water and deep ocean water
18

Convection refers to the movement of heat through a fluid, such as water. Which best describes one way that convection influences the circulation of ocean water?

A
Cold water at the surface flows toward the poles and sinks as it cools.
B
Deep, warm water flows toward the equator and rises as it cools.
C
Warm water at the surface flows toward the poles and sinks as it cools.
D
Deep, cold water flows toward the equator and rises as it cools.
19

Which factor contributes to the formation of tides that turn turbines to create energy in the ocean?

A
wind speed
B
water density
C
Earth’s rotation
D
water temperature
20

Which ocean movement do power plants use to produce usable energy?

A
currents
B
drifts
C
tides
D
tsunamis

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