8.MS-ESS2-6 Question Preview (ID: 59849)
8.MS-ESS2-6.
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Which of the following is the MOST dense?
a) cold water that is very salty
b) cold water that is not very salty
c) warm water that is very salty
d) warm water that is not very salty
What happens to ocean water as its density increases?
a) it rises towards the surface of the water
b) it sinks towards the bottom of the ocean
c) it stops moving in an ocean current
d) it is able to transport more nutrients
Which of the following is NOT responsible for the path of ocean surface currents?
a) wind
b) rotation of the Earth
c) differences in density
d) placement of land
The Gulf Stream is warm water current that flows towards the United Kingdom. Because of it, _______
a) winters are colder in the UK than expected due to its distance from the equator
b) winters in the UK are extremely unpredictable
c) it is impossible to sail against the Gulf Stream
d) winters are warmer in the UK than expected due to its distance from the equator
Where are the ocean garbage patches found?
a) in the center of the ocean's gyres
b) right off the coasts of major coastal cities
c) along the major shipping routes
d) where the ocean water is less dense
As polar ice caps melt, the density of the ocean water there decreases. Why?
a) the ocean water gets an influx of salt
b) the ocean water gets an influx of fresh water
c) the ocean water gets colder
d) the ocean water rises
As the deep water currents scrape along the bottom of the ocean, what gets stirred up?
a) salt
b) warmer water
c) nutrients
d) garbage
If trade winds move towards the northeast, what direction would the surface currents there move?
a) southwest
b) northwest
c) southeast
d) northeast
What kind of temperatures do warm water currents bring with them?
a) warmer
b) cooler
c) unpredictable
d) unchanging
As ocean temperatures rise, what could happen to thermohaline circulation?
a) it could speed up
b) it could slow down
c) more water could flow down the Denmark Strait Cataract
d) more nutrients could be brought to the surface of the ocean
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