Oceans Study Guide Question Preview (ID: 58456)


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An area where rivers flow into the ocean and mix fresh and salt water is a(n)?
a) estuary
b) neretic
c) intertidal zone
d) swamp

Examples of nekton include
a) zooplankton, phytoplanton
b) dolphin, tuna
c) crab, Angler fish
d) starfish

. Free-swimming animals that can move throughout the water column are called?
a) neretic
b) benthos
c) plankton
d) nekton

Deep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?
a) thermal heat
b) hydropower
c) chemosynthesis
d) photosynthesis

Which best explains why inhabitants of an estuary must adapt to frequent environmental changes?
a) Estuaries receive little sunlight.
b) The water temperature is constantly warm.
c) The salinity of the water is constantly changing.
d) Low levels of oxygen are absorbed by the water.

What are the 3 most abundant dissolved gases are found in the ocean?
a) Oxygen,Carbon Dioxide and Hydrogen
b) Oxygen, Nitrogen and Sulfur
c) Oxygen, Carbon Dioxide and Nitrogen
d) Nitrogen, Sulfur and Hydrogen

What happens as you go down the water column? ( from the surface to the deep)
a) Temperature increases, pressure increases,light increases
b) Temperature decreases, pressure increases, light increases
c) Temperature decreases, pressure increases, light increases
d) Temperature decreases, pressure increases, light decreases

Humans cannot easily study the ocean floor because it
a) The temperature is too high and it's too dark
b) The temperature is too low and it's too light
c) The temperature is too low and it's too dark
d) The temperature is too high and it's too light

Upwelling is when
a) Cold water rises from the bottom bringing nutrients
b) Warm water rises from the bottom bringing carbon dioxide
c) Warm water rises from the the bottom bringing nutrients
d) Cold Water rises from the bottom bringing oxygen

If you were standing on the beach and were to walk out into the ocean, which ocean zone would you first enter?Another name is splash zone.
a) neretic zone
b) intertidal zone
c) open ocean zone
d) hadal zone

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