Unit 3 Ocean Environment Pretest
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- 1.
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_______ is the continental shelf.- A.
A
- B.
B
- C.
C
- D.
D
- 2.Which is not a cause of major ocean currents?
- A.
Wind blowing
- B.
Volcanoes erupting
- C.
Earth rotating
- D.
Water densities varying
- 3.
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According to the graph above, which dissolved material is most abundant in seawater?- A.
Calcium
- B.
Chloride
- C.
Sodium
- D.
Sulfate
- 4.
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According to this food web, if all the phytoplankton died, what would happen to the other sea animals?- A.
They would eat more zooplankton.
- B.
They would reproduce faster.
- C.
They would die off.
- D.
They would grow smaller.
- 5.
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The ultimate source of food for all of the ocean organisms listed in the graph is what?- A.
Blue shark
- B.
Giant Pacific Octopus
- C.
Phytoplankton
- D.
Northern Anchovy
- 6.On Earth, what is the approximate ration of ocean to land?
- A.
30 oceans to 70 land
- B.
50 oceans to 50 land
- C.
60 oceans to 40 land
- D.
70 oceans to 30 land
- 7.
- A.
Oil drilling
- B.
Coal mining
- C.
Food collecting
- D.
Habitat polluting
- 8.
- A.
Settlement, pollution, and sediments
- B.
Gulf Stream, California Current, and longshore currents
- C.
Waves, currents, and undertow
- D.
Ecosystems, habitat, and coral reef
- 9.
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Which major feature of the ocean floor is not included in the diagram above?- A.
Abyssal plain
- B.
Continental rise
- C.
Mid-ocean ridge
- D.
Ocean trench
- 10.
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The graph above shows the depths of the Atlantic Ocean at specific distances from the Virginia coastline. At which point would you expect to find the mid-ocean ridge?- A.
500 miles
- B.
1,000 miles
- C.
2,000 miles
- D.
2,500 miles
- 11.
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Students at Smith Elementary conducted experiments dealing with the amount of dissolved oxygen in water (measured in parts per million or ppm) and the water's ability to support life. According to the graph above, which water sample was the worst in life-supporting capabilities?- A.
3 ppm
- B.
5 ppm
- C.
9 ppm
- D.
12 ppm
- 12.
- A.
The greater the depth, the greater the pressure exerted on the organism.
- B.
Some organisms require unfiltered sunlight while others require none at all.
- C.
Some organisms can withstand near-zero temperatures while others cannot.
- D.
All of the above.
- 13.
- A.
Green marine algae
- B.
Phytoplankton
- C.
Tropical Fish
- D.
Zooplankton
- 14.
- A.
The waves move sediments to slowly rearrange the ocean floor.
- B.
The currents deposit sand and rock too quickly from the major features.
- C.
Plates move to cause mountaings and trenches to slowly form.
- D.
Volcanoes erupt to cause trenches and abyssal plains to quickly form.
- 15.Waves, ocean currents, and tides are all forms of water movement in the ocean. Which type is caused by the moon's gravitational pull on the Earth?
- A.
Ocean currents
- B.
Tides
- C.
Waves
- D.
All of the above
- 16.In the world's oceans, over-fishing, pollution, and habitat destruction threatens many organisms. What are two animals in our own Chesapeake Bay that are threatened by such human acts?
- A.
Shrimp and codfish
- B.
Lobsters and tuna
- C.
Blue crabs and oysters
- D.
Trout and crayfish
- 17.If the Earth's ocean suddently dried up, what might the primary impact be on humans?
- A.
The Earth's food supply would increase.
- B.
The ocean floor could be mined for gold.
- C.
The fresh water supply would dwindle.
- D.
The ocean floor could be used as farmland.
- 18.Smallville, Virginia is located near the border with West Virginia. Recently, the Town Council has decided to pass a law that allows farmers to use any sort of pesticide they wish. The Town Council also passed a law that allows people to dump oil, antifreeze, and paint into deep pits in the local trash dump. Barbara and Joel both live in Portsmouth, Virginia, and are protesting these laws. Why do they believe that these laws may harm Portsmouth?
- A.
The laws will allow people to bring their pollutants to Portsmouth and pollute the water.
- B.
The laws will allow people to pollute their ground water, which empties into the ocean.
- C.
The laws will allow people to pollute their ground water, which only affects Smallville.
- D.
The laws will allow people to bring their pollutants to the dump to be safely disposed of.
- 19.___________ is the rather level area of the ocean floor.
- A.
Continental rise
- B.
Abyssal Plain
- C.
Continental shelf
- D.
Continental slope
- 20.Feature of teeh ocean floor that is covered with thick sediments and spans the change in depth between the continental shelf and the continental rise.
- A.
Mid-Ocean Ridge
- B.
Continental slope
- C.
Abyssal Plain
- D.
Ocean Trench
- 21.The measurement from the ocean's surface to the floor in one given spot.
- A.
Tide
- B.
Ocean Trench
- C.
Depth
- D.
Wave
- 22.Deepest area of the ocean floor
- A.
Mid-Ocean Ridge
- B.
Ocean Trench
- C.
Continental shelf
- D.
Depth
- 23.Aquatic animals whose swimming appendages are too small to enable them to swim effectively against current. (They are typically microscopic, ranging in size up to a few centimeters long.)
- A.
Benthic
- B.
Phytoplankton
- C.
Zooplankton
- D.
Ecosystem
- 24.Area of transition between the abyssal plain and the continental slope that is covered with thick sediment.
- A.
Gulf Stream
- B.
Continental rise
- C.
Continental shelf
- D.
Ocean Trench
- 25.Single-celled plant-like and bacteria plankton which float on the ocean's surface, producing much of the Earth's oxygen and serving as one of the basis for the marine food web.
- A.
Zooplankton
- B.
Plankton
- C.
Phytoplankton
- D.
Nekton
- 26.Movement of energy through water caused by wind.
- A.
Tide
- B.
Wave
- C.
Current
- D.
Depth
- 27.A 'river' of water caused by temperature changes and the Earth's rotation that moves quickly through a larger body of water/
- A.
Current
- B.
Depth
- C.
Wave
- D.
Tide
- 28.A rather level area of the ocean floor that is covered with thick sediment and links the shoreline with the continental slope.
- A.
Continental rise
- B.
Abyssal Plain
- C.
Continental shelf
- D.
Mid-Ocean Ridge
- 29.Marine organisms that have the ability to swim or move against the current.
- A.
Benthic
- B.
Nekton
- C.
Plankton
- D.
Zooplankton
- 30.One of seven large bodies of salt water that covers about 70% of the Earth's surface.
- A.
Gulf Stream
- B.
Pacific Ocean
- C.
Ocean
- D.
Abyssal Plain
- 31.The major current of the Eastern United States coast that travels north from the equator. (It affects the temperature and weather of this region.)
- A.
Gulf Stream
- B.
Continental Shelf
- C.
Tide
- D.
Ocean Trench
- 32.The rhytmic movement of water on the Earth's surface that is caused by the moon's gravitational pull.
- A.
Wave
- B.
Gulf Stream
- C.
Tide
- D.
Current
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