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