Answer:
Explanation:
1.Eutrophication, with its six stages, can have a devastating effect on streams and lakes.
2.First, fertilizers used by farmers may be washed into lakes and rivers. Water plants then grow rapidly due to this fertilizer.
3.Some of these plants die due to lack of light from overcrowding. Microbes which feed on organisms now increase massively in number.
4. This huge number of microbes use up oxygen quickly as they respire. This results in a stagnant stretch of water.
5.Fishes and other aquatic animals are suffocated due to lack of oxygen in the water.
6. The answer is for farmers to be more careful and use less fertilizer.