Which best describes the types of organisms found in estuaries?

They tolerate both freshwater and salt water.

Why do plant plankton not grow in the deep ocean?

because sunlight does not reach the deep ocean

Why is productivity greatest near the ocean's surface?

Sunlight penetrates the top layers,so photosynthesis occurs.

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

changes in both temperature and salinity

Which best describes an estuary?

nutrient-rich salt marshes and mangrove forests in Florida

Which property must submersibles and ROVs share?

They must be able to withstand extreme water pressure.

Which statement about ocean currents is accurate?

Ocean currents stir nutrients to help produce oxygen.

Light does not reach the bottom of the ocean. How do organisms living there get energy to live?

Hydrothermal vents produce energy through chemical reactions

Which best explains how estuaries support plant and animal life?

The habitat areas provide nutrients and shelter.

Which characteristic of an estuary makes it a good nursery area for marine organisms?

It has many areas to hide from predators.

Which is a significant benefit estuaries have on the environment?

Coastal wetlands provide safe conditions to support animals.

Which would be the impact on the environment if there were no estuaries?

There would be more pollutants in the oceans.

Which type of ocean water would contain more dissolved oxygen?

cold ocean water in polar regions

Why are estuaries often valued as the center of human coastal communities?

Estuaries provide a place for people to live,fish, and swim.

How does sonar technology help scientists monitor the hydrosphere?

Sonar provides detailed images of areas of the ocean floor.

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

Upwelling carries nutrients to the surface of the ocean.

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Oceans

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Questions 31

Answers

1
Which invention allowed individuals to better perform research at ocean depths below 100 ft?
ship
submersible
satellite
barometer
2
Which represents the most diverse ecosystem?
freshwater ponds
coastal waters
freshwater lakes
oceans
3
Which best describes the types of organisms found in estuaries?
They cannot tolerate brackish water.
They tolerate both freshwater and salt water.
They are only found in freshwater.
They can survive in salt water.
4
Why do plant plankton not grow in the deep ocean?
because the water temperature is too cold
because too many animals eat it before it can grow
because there are not enough dissolved gases to support it
because sunlight does not reach the deep ocean
5
Why is productivity greatest near the ocean's surface?
Sunlight penetrates the top layers,so photosynthesis occurs.
Nutrients are more available in the bottom layers.
More predators live in the top layers.
Salinity at all layers of the open ocean is consistent.
6
Organisms that live in an intertidal zone must be able to tolerate which changes to survive?
changes in neither salinity nor temperature
changes in temperature but not salinity
changes in both temperature and salinity
changes in salinity but not temperature
7
Which best describes an estuary?
nutrient-rich salt marshes and mangrove forests in Florida
nutrient-poor Cape Fear River and Deep River basins
nutrient-rich tributaries of the Blue Ridge Mountains
nutrient-poor swamps and bogs of the Great Lakes
8
A cargo ship in the open ocean spills oil into the ocean. Which ecosystem is most affected?
surface zone
estuary
coral reef
hydrothermal vent
9
Which property must submersibles and ROVs share?
They must be able to transport scuba divers.
They should be able to employ robotic arms.
They must be able to withstand extreme water pressure.
They should be able to submerge quickly.
10
Which statement about ocean currents is accurate?
Ocean currents are a major cause of glacier formation.
Ocean currents influence life at the shore.
Ocean currents keep the ocean temperature unstable.
Ocean currents stir nutrients to help produce oxygen.
11
The most abundant form of ocean life is
fish
sharks
microbes
algae
12
Which technological tool uses a sound echo to measure distance?
sonar
robotic probe
ocean buoy
submarine
13
Light does not reach the bottom of the ocean. How do organisms living there get energy to live?
Dead organisms produce energy through decomposition.
Algae and bacteria produce energy through photosynthesis.
Hydrothermal vents produce energy through chemical reactions
These organisms don't need energy.
14
Which characteristic distinguishes an estuary from other bodies of water?
plant life
animal life
dissolved oxygen
salinity level
15
Which dissolved gas is added to ocean water as a result of photosynthesis?
nitrogen
hydrogen
carbon dioxide
oxygen
16
Which best explains how estuaries support plant and animal life?
The habitat areas provide nutrients and shelter.
The water provides energy for growth.
The dry land removes pollutants.
The cold temperatures decrease dissolved oxygen.
17
Which characteristic of an estuary makes it a good nursery area for marine organisms?
It has a mix of salt and fresh water.
It has many areas to hide from predators.
It is located at the mouth of a river.
It has the ability to absorb water and prevent flooding.
18
Which dissolved gases are most needed by plants and animals living in the ocean?
nitrogen and oxygen
carbon dioxide and nitrogen
oxygen and carbon dioxide
carbon monoxide and nitrogen
19
Which technology has allowed scientists to accurately map the ocean floor?
satellites
scuba
submersibles
sonar
20
Which is a significant benefit estuaries have on the environment?
Coastal wetlands provide safe conditions to support animals.
Wildlife helps protect the land from erosion in estuaries.
Fishing industries thrive around estuaries.
Pollution is moved from rivers to oceans through estuaries.
21
Which would be the impact on the environment if there were no estuaries?
There would be a drought.
There would be less salt in the oceans.
There would be more pollutants in the oceans.
There would be less boating and fishing in local rivers.
22
Which are the two main sources of dissolved oxygen in the ocean?
surface air and ocean plants
underwater volcanoes and earthquakes
warm water vents and Earth's core
animal respiration and dead matter decomposition
23
Which type of ocean water would contain more dissolved oxygen?
warm ocean water in equatorial regions
warm ocean water in tropical regions
temperate ocean water in subtropical regions
cold ocean water in polar regions
24
Why are estuaries often valued as the center of human coastal communities?
Estuaries provide a place for people to live,fish, and swim.
Estuaries filter pollution out of ocean water?
Estuaries enhance future marine biology resources.
Estuaries create mild habitats for deep sea life.
25
Which is most effective in monitoring large areas of the ocean floor?
weather balloons
submarines
satellites
remote-operated vehicles
26
Which is the largest zone in the ocean?
intertidal
benthic
oceanic
neritic
27
Why are large numbers of ocean animals found in areas where upwelling occurs?
There is less oxygen.
There is more oxygen.
There are more nutrients.
There are less nutrients.
28
Which natural feature protects inland bodies of water from contamination by salt water?
bog
hydrothermal vent
estuary
canyon
29
Which best describes the water in estuaries?
freshwater
polluted water
brackish water
salt water
30
How does sonar technology help scientists monitor the hydrosphere?
Sonar detects different levels of water quality in rivers.
Sonar collects information from freshwater organisms.
Sonar distributes satellite images for data collection.
Sonar provides detailed images of areas of the ocean floor.
31
Which best explains what happens to nutrients in the ocean as a result of upwelling?
Upwelling carries nutrients to the surface of the ocean.
Upwelling carries nutrients to coral reefs.
Upwelling carries nutrients to the ocean bottom.
Upwelling carries nutrients to the intertidal zone.

Oceans Flashcards | StudBud