Eutrophication, too much nutrient enrichment in aquatic ecosystems leading to algal blooms and anoxia, causes fish kills, loss of biodiversity, and renders h2o unfit for consuming and also other industrial employs. Excessive fertilization and manure software to cropland, together with superior livestock stocking densities induce nutrient (generally nitrogen and phosphorus) https://the-farming-blog.s3.eu-north-1.amazonaws.com/index.html