
Freshwater Ecosystem Quiz
Authored by Timothy Murphy
Business
6th - 8th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the planet's water is fresh water?
Less than 3%
About 25%
More than 50%
Exactly 10%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does fresh water originate?
From melting ice only
From underground lava flows
From evaporation of oceans, lakes, and other bodies of water
Directly from rainfall only
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of limnologists?
They research urban development
They focus on desert ecosystems
They study freshwater ecosystems
They study marine ecosystems
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes water in lakes to churn and mix nutrients?
Temperature changes between seasons
Fish swimming patterns
Boats and human activity
Pollution levels
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a significant threat to freshwater ecosystems?
Air traffic
Solar radiation
Noise pollution
Invasive species
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main consequence of the spiny water flea invasion in Lake Mendota?
Increased algae growth and lower oxygen levels
Decreased water temperatures
Increased fish populations
Improved water clarity
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary source of fresh water in cities?
Imported bottled water
Groundwater from aquifers
Direct rainfall
Recycled wastewater
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