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Assessment
What is the primary source of nutrients in freshwater aquatic ecosystems?
Runoff from agricultural land
Atmospheric deposition
Sedimentation from surrounding soils
Aquatic plant decay
Which nutrient is often associated with eutrophication in aquatic systems?
Phosphorus
Iron
Calcium
Magnesium
What process can lead to a decrease in nutrient availability in aquatic ecosystems?
Sedimentation
Upwelling
Nutrient cycling
Photosynthesis
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