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- 1. Multiple Choice
An estuary is best defined as a place where--
fresh and salt water meet
a river meets the Chesapeake Bay
a group of animals are gathered
the water from the land flows into a river
- 2. Multiple Choice
the amount of salt dissolved in water is
pH
salinity
solution
miscibility
- 3. Multiple Choice
Bay, lagoon, harbor, inlet, and sound are other names for
wetlands
lakes
bogs
estuaries
- 4. Multiple Choice
a mix of salt water and fresh water
mixture
brackish
abiotic
biotic
- 5. Multiple Choice
True or False:
Estuaries are one of the most productive Ecosystems/Biomes in the world.
False
True
- 6. Multiple Choice
Which letter marks the estuary in the diagram shown?
B
C
A
- 7. Multiple Choice
Why are estuaries important to our environment?
Estuaries filter pollutants and prevent erosion.
Estuaries provide nurseries for marine life.
Estuaries act as home for many types of wildlife.
All of the above.
- 8. Multiple Choice
Where would you find greater salinity in an estuary?
On the surface of the water.
Near the bottom.
Somewhere in the middle.
It would be the same throughout the estuary.
- 9. Multiple Choice
A salt wedge forms in an estuary because
fresh water is more dense than seawater and sinks down.
fresh water is less dense than seawater and sinks down.
fresh water is more dense than seawater and floats on top.
fresh water is less dense than seawater and floats on top.
- 10. Multiple Choice
a partially enclosed body of water where salt and freshwater mix is a/an
wetland
lake
estuary
aquifer
- 11. Multiple Choice
factors that are non-living things such as climate that affect an ecosystem
biotic
salinity
sources
abiotic
- 12. Multiple Choice
Bay, lagoon, harbor, inlet, and sound are other names for
wetlands
lakes
bogs
estuaries
- 13. Multiple Choice
these areas of land that are covered by water all year or for at least one full season help control floods and serve as natural filters
estuaries
wetlands
seas
flood plains
- 14. Multiple Choice
factors that are living things that affect an ecosystem
biotic
abiotic
organic
brackish
- 15. Multiple Choice
the part of the river that empties into a bay or ocean is the
source
mouth
upstream
middle
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