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