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Assessment
What is one common source of chemical contaminants found in river habitats?
Agricultural runoff
Natural filtration
Rainwater absorption
Predatory fish
Which of the following is a potential effect of chemical contaminants on aquatic life?
Enhanced reproduction rates
Increased biodiversity
Biomagnification
Improved water quality
What is one method that can be used to assess the impact of chemical contaminants on river ecosystems?
Visual inspection of fish populations alone
Chemical analysis of water samples
Counting the number of plants in the river
Surveying local residents about fishing habits
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