Biology for IGCSE & O level - Human Influences On Ecosystems (Section 6 - No. 11)

How does the use of fertilizers in agriculture contribute to water pollution?

By increasing soil erosion.

By releasing greenhouse gases.

By causing algal blooms and depleting oxygen levels.

By reducing the acidity of the water.

Fertilizer runoff causes eutrophication, leading to algal blooms that consume oxygen in water.