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8.2 Estuaries Concept Check
By Faith Schutt
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Last updated over 1 year ago
15 questions
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Question 1
1.
How do estuaries act as natural filters for water?
Trap pollutants
Increase pollution
Delay water flow
Allow toxins to spread
Question 2
2.
Why are estuaries crucial for coastal ecosystems?
Biodiversity support
Habitat destruction
Population control
Reducing species variety
Question 3
3.
Which common estuary type is associated with the Hudson River?
Outer Banks
Bar Built
Fjord
Drowned River Valley
Question 4
4.
What physical characteristics fluctuate in estuaries?
Temperature
Tide
Shape
Salinity
Oxygen
Question 5
5.
What type of substrate is commonly found in estuaries?
Rocks
Clay
Silt
Sand
Gravel
Question 6
6.
What stays on top in estuaries due to density?
Plastics
Trash
Freshwater
Oil
Question 7
7.
What happens to salinity as you move up a river?
Remains constant
Increases
Decreases
Fluctuates
Question 8
8.
What extreme condition do organisms in estuaries need to adapt to?
Temperature
Pressure
Salinity
Humidity
Question 9
9.
Which animals migrate in estuaries for salinity adaptation? Select all that apply.
Salmon
Molluscs
Eels
Polychaetes
Question 10
10.
Where do organisms in estuaries find stability and protection?
In the air above ground
Inside large floating objects
Exposed on the water surface
Under the surface
Question 11
11.
Which estuarine community is primarily affected by pollution and overharvesting?
Oyster reefs
Mud flats
Open water
Intertidal zone organisms
Question 12
12.
Why does an estuary with lots of suspended sediment have poor light?
Water is too deep
Sediment is colorful
Algae absorb all light
Suspended sediment blocks sunlight
Question 13
13.
What is a characteristic of estuaries used by commercially important fish?
Lack of predators
High salinity
Deep waters
Acting as nurseries
Question 14
14.
What role do estuaries play in water quality management? Select all that apply.
Accelerate erosion
Maintain water quality
Increase sedimentation
Protection against storms and erosion
Question 15
15.
How does urban development impact estuarine communities?
Diversifies species
Increases pollution
Enhances oxygen levels
Promotes biodiversity