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Pollution

Explain how untreated sewage and excess fertilizers impact aquatic ecosystems.

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90 min

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CambridgeIGCSEBiologyHuman influences on ecosystems

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4 objective pages available

Pollution outcomes4 objectives

Explain how untreated sewage and excess fertilizers impact aquatic ecosystems.
Explain the impact of non-biodegradable plastics on both aquatic and land ecosystems.
Identify the sources and consequences of air pollution from methane and carbon dioxide, focusing on the enhanced greenhouse effect and climate change.
Describe the eutrophication process in water, including increased nitrate availability, producer growth, decomposition, aerobic respiration by decomposers, oxygen reduction, and the death of oxygen-dependent organisms.

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