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x4.04 Water & Human Impact 25-26
By Elizabeth Winer
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20 questions
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Question 20
20.
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Question 1
00:48
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Question 2
01:44
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06:24
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Question 11
07:10
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Question 12
09:03
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Question 13
09:45
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Question 14
10:58
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Question 15
11:31
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Question 16
12:49
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Question 17
13:48
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Question 18
14:36
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Question 19
16:29
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Reflection:
How do human actions—such as urban development, agriculture, and fishing—alter the water cycle and impact ecosystems?
What are some of the the challenges of managing shared water resources like watersheds and fisheries?
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Question 13
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__________ of Earth's water is fresh water and __________ of Earth's water is saltwater.
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Question 19
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What drives the hydrologic / water cycle?
the Sun
the moon
Oceans
When water lands on solid ground, what are two possible outcomes?
It evaporates or freezes
It turns to vapor or clouds
It becomes groundwater or runoff
What is the process of water evaporating from holes in plant's leaves and becoming water vapor?
evapotranspiration
infiltration
photosynthesis
How much water does the average person in the United States use daily?
80-100 gallons
50-70 gallons
10-30 gallons
What can affect the quality of river water?
Runoff from agricultural areas
The number of fish in the river
Temperature changes
What is a watershed?
An area of land that drains into a single larger body of water
An area that collects rainwater
A river's tributary
What is a common feature that affects how water flows across landscapes?
Mountain ranges
Trees
Rivers
What can beavers dramatically alter in an ecosystem?
The flow of water
Air quality
Soil composition
Which ecosystem filters and cleans water?
Grasslands
Wetlands
Deserts
What term is used for species that have a profound impact on their ecosystem?
Keystone species
Invasive species
Endangered species
What do impermeable surfaces in urban areas prevent?
Water from evaporating
Water from flowing
Water from seeping into the ground
What are the effects of impermeable surfaces in urban areas?
Enhanced plant growth due to better soil aeration
Soil can't filter out pollutants and water is pulled from aquifers unsustainably
Increased grounwater recharge and improved water quality
What happens when fertilizer runoff enters the Gulf of Mexico?
It creates a dead zone
It improves water quality
It increases fish populations
What is a "commons"?
A resource accessible to everyone
A resource owned by the government
A private property
What does the "Tragedy of the Commons" refer to?
Overuse of a common resource leading to depletion
The success of sustainable fishing
A celebration of shared resources
Which of the following do
you
think would be the most successful solution to the "Tragedy of the Commons"?
No wrong answers 😄
Legislation
Education
Private ownership
What does sustainable yield mean?
The minimum amount of fish needed for survival
The maximum number of fish that can be caught
The highest rate at which a resource can be used and still be maintained
What has helped some fisheries recover from overexploitation?
Policy-making, education, and research
Reducing the number of fishing boats
Ignoring scientific research