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WorksheetsMarine Ecosystems
Total questions: 20
Worksheet time: 10mins
Why is upwelling beneficial?
It provides waters where commercially important fish spawn or seek refuge at some stage
cool, deep water rises to the surface bringing nutrients for fish which benefits coastal ecosystems and fisherman
fresh and sale water mix to support unique communities of organisms making the area very productive
it allows scientists to determine the health of the ocean environment and monitor changes over time
In which oceanic zone do clams and crabs survive by burrowing in the sand?
Oceanic
Deep sea
Open sea
Intertidal
What lives on or near the bottom of the ocean?
Plankton
Nekton
Benthos
Hydrothermal Vents
What is microscopic and floats in the ocean?
Plankton
Benthos
Nekton
Fish
Many organisms that live in the rocky intertidal zone are able to burrow into the sand or have shells that can close tightly because they need to withstand the...
Pounding of the waves
changes of salinity
periods of being underwater and exposed to air
changes in density
The part of the ocean where ecosystems do not rely on sunlight to create nutrients, but instead rely on chemicals released from inside the Earth to sustain life....
The intertidal zone
Around hydrothermal vents
The deep zone
The surface zone
The part of the ocean that extends from the edge of one continental shelf to the other is called the....
Nertic zone
Open-ocean zone
Intertidal
Deep zone
Organism that live in tide pools have to be able to sustain which environment pressure
Water getting colder
Water getting darker
Water getting deeper
Water getting saltier
When sea surface temperatures in the equatorial Pacific Ocean are unusually warm temperatures, what may be occurring?
El Nino
La Nina
Global Warming
A hurricane
What does this form of technology measure?
Water depth
Water temperature
pH levels of water
Dissolved oxygen in water
The population density of marine life is greater along the shorelines of the ocean than farther out in the deep waters of the ocean. Which statement provides the best reason for this situation?
Ocean currents prevent many smaller marine organisms from living in deep water.
The shallow waters have fewer predators.
Coastal waters are less polluted than the deeper waters of the ocean.
There are more nutrients in shallow waters.
What is an estuary?
The land area that drains water into a lake, river, or pond.
The area where a river meets the ocean, where fresh and salt water mix.
The large body of salt water that covers most of the earth's surface.
The underground system that provides drinking water to an area.
Water is brought to an estuary from a variety of sources. Which of the following is responsible for increasing the salinity in the estuary?
Rivers
Streams
Urban run-off
Tides
Water in most estuaries is brackish because of the mixing of fresh water from rivers and saltwater from incoming tides. A drought in the bay watershed would most likely cause the water in the bay to …
Increase in salinity
Decrease the salinity
Stay the same
Rise
What do the deep sea creatures use as their main food source?
Zooplankton
Phytoplankton
Detritus
Bread from humans
An area where ocean water sinks through cracks in the ocean floor, is heated by the underlying magma, and rises again is called a(n)
Tide pool
Estuary
Hydrothermal vents
Atoll
The part of the ocean that extends form the low-tide line to the edge of the continental shelf is the ____________________.
Open-Ocean Zone
Nertic Zone
Intertidal Zone
Deep Ocean Zone
What is the hydrologic cycle in the most correct order?
precipitation, evaporation, condensation, runoff, infiltration, transpiration
infiltration, transpiration, evaporation, condensation, runoff, precipitation
precipitation, condensation, runoff, transpiration, evaporation, infiltration
transpiration, infiltration, runoff, precipitation, evaporation, condensation
What % of water covers the Earth, is in the ocean and is in freshwater?
There is 97% of water that covers the Earth because it takes up most of the Earth. There is 71% that is in our oceans, 3% that is in freshwater and only 1% of that freshwater that we can use.
There is 71% of water that covers the Earth because it takes up most of the Earth. There is 97% that is in our oceans, 3% that is in freshwater and only 2% of that freshwater that we can use.
There is 71% of water that covers the Earth because it takes up most of the Earth. There is 97% that is in our oceans, 3% that is in freshwater and only 1% of that freshwater that we can use.
There is 71% of water that covers the Earth because it takes up most of the Earth. There is 97% that is in our oceans, 3% that is in freshwater and only .05% of that freshwater that we can use.
Where do tectonic plates float?
On the floor
On the ocean
Asthenosphere
Atmosphere
