Freshwater Ecosystems and Pollution Flashcard

Front

What are the main pollutants that contribute to groundwater contamination?

Back

Heavy metals, fertilizers, oil spills, and pathogens.

Front

What is the primary cause of nutrient pollution in freshwater ecosystems?

Back

Fertilizer use.

Front

Which ecosystem is known for providing storm protection and filtering pollutants?

Back

Estuaries.

Front

What are the zones present in standing water ecosystems?

Back

Littoral, Benthic, Limnetic, and Profundal.

Front

What is point-source pollution?

Back

Pollution that originates from a single location.

Front

Define nutrient pollution.

Back

Nutrient pollution occurs when excess nutrients, primarily nitrogen and phosphorus, enter water bodies, leading to algal blooms and oxygen depletion.

Front

What role do wetlands play in freshwater ecosystems?

Back

Wetlands filter pollutants, provide habitat for wildlife, and help in flood control.

Front

Explain the difference between point-source and non-point source pollution.

Back

Point-source pollution comes from a single identifiable source, while non-point source pollution comes from multiple diffuse sources.

Front

What are heavy metals, and why are they a concern in freshwater ecosystems?

Back

Heavy metals are toxic elements like lead, mercury, and cadmium that can accumulate in organisms and disrupt ecosystems.

Front

How do fertilizers contribute to freshwater pollution?

Back

Fertilizers can run off into water bodies, causing nutrient pollution and harmful algal blooms.