Question

what causes eutrophication in lakes? pollution salinity freshwater organisms rewatch

Explanation:

Eutrophication is caused by an over - enrichment of nutrients, often from pollution sources like agricultural runoff, sewage discharge etc. Salinity is related to salt content and not a direct cause of eutrophication. Freshwater organisms do not cause eutrophication. "Rewatch" is not a cause.

Answer:

Pollution