1. Harmful microalgae is the causative agent of red tide. Eutrophication of river often results in the bloom of harmful microalgae.
a. Define eutrophication and explain how eutrophication results in the bloom of harmful microalgae.
b. Predict the effects of the bloom of harmful microalgae in river on water quality and the biological and chemical events leading to these effects apart from the occurrence of red tide.
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a. Eutrophication is defined as the process by which a water body gets enriched with dissolved nutrients, like phosphates and nitrates, which stimulate the development of aquatic plants such as algae, and eventually lead to the depletion of dissolved oxygen in water. Dead zones, fish kills red tides, brown tides and growth of Pfiesteria are some of the end results of eutrophication which is also called nutrient...