How does upwelling affect algae populations?

abundant nutrients cause algae populations to increase

What makes estuaries more beneficial than rivers or oceans?

there are more nutrients in estuaries

Which best explains what happens to nutrients in the ocean as a result of upwelling?

Upwelling carries nutrients to the surface of the ocean

How do surface ocean currents affect the climate of the land around it?

warm water currents bring warm air

Which best describes the water distribution in an estuary?

freshwater is closer to the surface than saltwater

Which of the following best describes the abyssal plain?

flat, sandy region of the ocean floor

Why are estuaries important to oceanic organisms?

provide a nursery for oceanic organisms

Why are phytoplankton important to the ocean?

they provide oxygen through photosynthesis

Why is there more life at the surface zone than other ocean zones?

there are more nutrients and sunlight for photosynthesis

How do nutrient levels differ in an estuary from other bodies of water?

levels are higher in the estuary than the ocean

Organisms that live in an intertidal zone must be able to tolerate which changes to survive?

changes in both temperature and salinity

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Unit 4 Oceans CvMS

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Questions 25

Answers

1
How does upwelling affect algae populations?
the current produced by upwelling forces algae out to sea
the algae population grows slowly and forces marine life out
algae populations are depleted as a result of cold water
abundant nutrients cause algae populations to increase
2
Which characteristic distinguishes estuaries from other bodies of water?
animal life
plant life
dissolved oxygen levels
salinity levels
3
How does water pressure change as you go from the surface zone to the deep ocean zone?
pressure increases
pressure stays the same
pressure increases then decreases
pressure decreases
4
What makes estuaries more beneficial than rivers or oceans?
there is more salt available in estuaries
there are more predators in estuaries
there are more nutrients in estuaries
there is less food in estuaries
5
Which best explains what happens to nutrients in the ocean as a result of upwelling?
Upwelling carries nutrients to the intertidal zone
Upwelling carries nutrients to the ocean bottom
Upwelling carries nutrients to the surface of the ocean
Upwelling carries nutrients to coral reefs
6
How do surface ocean currents affect the climate of the land around it?
it is always colder at the beach
the further south you are, the colder it is
warm water currents bring warm air
warm water currents bring cold air
7
In which horizontal ocean zone would you find eastuaries?
neritic
open ocean
intertidal
surface
8
Which best describes the water distribution in an estuary?
saltwater is closer to the surface than freshwater
freshwater is closer to the bank, saltwater is further out
freshwater is closer to the surface than saltwater
saltwater is closer to the bank, freshwater is further out
9
The least dense ocean water is generally found
along the coast
in the transition zone
in the surface zone
in the deep zone
10
A dolphin would be an example of which type of organism?
plankton
benthos
nekton
zooplankton
11
Which of the following best describes the abyssal plain?
gently sloping area of ocean floor that extends from land
ridges caused by sea floor spreading
steep drop off leading to the ocean floor
flat, sandy region of the ocean floor
12
Which best describes how humans use the ocean? Read all answers choices carefully!
food, oil, trade
swimming
tourism, exploration
blue diamond and orange circle
13
What is the driving force behind ocean currents at the surface?
differences in salinity
wind
differences in density
differences in pressure
14
Which of the following is a correct ocean food web?
fish -> shark -> plankton
shark -> fish -> plankton
plankton -> fish -> shark
plankton -> shark -> fish
15
Why are estuaries important to oceanic organisms?
provide excess dissolved oxygen for oceanic organisms
provide sunlight for oceanic organisms
provide a nursery for oceanic organisms
provide primary nutrients for oceanic organisms
16
Which of the following results from sea floor spreading?
continental slope
mid ocean ridges
trenches
abyssal plain
17
Which best describes a factor that is the same for the different layers of the ocean?
salinity
amount of light
density of the water
oxygen levels
18
Which type of water is found in estuaries?
only freshwater
brackish water
only saltwater
none of the above
19
Why are phytoplankton important to the ocean?
they eat other organisms
they are top predators
they provide oxygen through photosynthesis
they eat dead organisms
20
Why is there more life at the surface zone than other ocean zones?
there are more nutrients and sunlight for photosynthesis
there is less sunlight
there is higher density
there is less oxygen
21
How do nutrient levels differ in an estuary from other bodies of water?
levels are lower in an estuary than the river
levels are higher in the estuary than the ocean
levels vary depending on the ocean and river that connects
levels vary depending on the ocean that connects to it
22
Which best describes a significant benefit estuaries have on the environment?
water is filtered before entering the ocean
all of the above
plant life helps protect the land from erosion
coastal wetlands provide safe conditions to support life
23
Organisms that live in an intertidal zone must be able to tolerate which changes to survive?
changes in salinity but not temperature
changes in neither temperature nor salinity
changes in temperature but not salinity
changes in both temperature and salinity
24
Which technology has allowed scientists to map small areas of the ocean floor?
sonar
satellites
scuba
submersibles
25
In which horizontal ocean zone would you most likely find seals?
open ocean
neritic
deep ocean
intertidal

Unit 4 Oceans CvMS Flashcards | StudBud