Step 1: Understand the role of nutrients in aquatic systems
Excess nutrients, especially nitrogen and phosphorus, enter aquatic systems from agricultural runoff, sewage, and industrial waste.
Step 2: Nutrient enrichment leads to eutrophication
The process of nutrient enrichment leads to a condition called eutrophication, which encourages the rapid growth of algae and phytoplankton.
Step 3: Resulting biological effect
This excessive growth results in an algal bloom, which can deplete oxygen levels in the water, block sunlight, and harm aquatic life.