
Threats to Wetlands
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is degradation in the context of wetlands?
Back
Degradation refers to the deterioration of wetland quality due to factors like sedimentation, pollution, and development, leading to loss of biodiversity and ecosystem services.
2.
FLASHCARD QUESTION
Front
What are dams and their purpose in wetland management?
Back
Dams are structures built to hold and release water, creating reservoirs that can manage water flow and sometimes generate power, impacting wetland ecosystems.
3.
FLASHCARD QUESTION
Front
What are invasive species?
Back
Invasive species are non-native organisms that disrupt local ecosystems, often outcompeting native species and altering habitat conditions.
4.
FLASHCARD QUESTION
Front
Name three invasive species that negatively affect wetlands.
Back
Saltcedar, Nutria, and Beavers are all invasive species that can harm wetland ecosystems.
5.
FLASHCARD QUESTION
Front
How does building on wetlands affect hurricane impact?
Back
Building on wetlands can increase the devastation from hurricanes by reducing natural barriers that absorb storm surges and flooding.
6.
FLASHCARD QUESTION
Front
What percentage of natural wetlands have been lost?
Back
Approximately 50% of natural wetlands have been lost due to human activities and development.
7.
FLASHCARD QUESTION
Front
What is point source pollution?
Back
Point source pollution refers to contaminants that enter a water body from a single, identifiable source, such as a pipe or ditch.
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