Which of the following is true of El Niño?

El Niño can cause severestorms and can prevent upwelling.

Which of the following areas in the ocean is likely to have the lowest salinity?

a bay at the mouth of a big river

the interaction of Earth, the moon, and the sun.

twice a month, during a new moon and a full moon.

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Milestones practice 16, Ocean motions

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Answers

1
Which of the following is true of El Niño?
El Niño can cause severestorms and can prevent upwelling.
Scientists fully understand conditions that create El Niño.
El Niño affects only theocean, not the land.
El Niño usually occurstwice a year.
2
Zones of upwelling areoften associated with
a lack of nutrients
the upward movement of warm water
enormous schools of fish
El Nino
3
Which of the following areas in the ocean is likely to have the lowest salinity?
a warm, tropical sea
a bay at the mouth of a big river
the cold Arctic Ocean
deep parts of the Pacific Ocean
4
Gulf Stream and North Atlantic Drift affect Europe's climate. What type of current are they?
warm surface currents
cold surface currents
warm deep curents
cold deep currents
5
Deep currents are caused mostly by
the Coriolis effect
surface winds
upwelling
differences in density
6
Tides are caused by
the turning of Earth.
the interaction of Earth, the moon, and the sun.
strong winds that blow over ocean waters.
the shifting of the plates on the ocean floor.
7
A large stream of moving water that flows through the oceans is called a(n)
wave
tide
undertow
current
8
The movement of cold, deep ocean water to replace warm water at the surface is called
the Coriolis effect
a surface current
upwelling
El Nino
9
About how often do hightides occur in most places?
every tow weeks
every 12 hours
every 20 minutes
every 24 hours
10
Waves on the surface of theocean are mostly caused by
wind
earthquakes
the moon
the Coriolis effect
11
As a wave nears shore, thewave height increases and the wavelength
doubles
increases
stays the same
decreases
12
Spring tides occur
once a month, during a newmoon.
once a month, during a fullmoon.
twice a month, during afirst and a third quarter moon.
twice a month, during a new moon and a full moon.
13
The horizontal distance between wave crests is the
trough
frequency
wave height
wavelength
14
In the Northern Hemisphere, currents curve to the right because of the
moon's gravity
longshore drift
density
Coriolis effect
15
The height of a surfacewave is NOT affected by the
length of time the wind blows across the water
salinity of the water
strength of the wind
distance the wind blows across the water
16
Salinity is a measure of which of thefollowing in water?
oxygen
magnesium chloride
sand
dissolved salts
17
The most dense ocean water is generally found
in the deep zone
in the transition zone
along the coast
in the surface zone
18
A tide with the LEASTdifference between low and high tide is called a
spring tide
rip tide
neap tide
monthly tide

Milestones practice 16, Ocean motions Flashcards | StudBud