Question

2.Which definition best describes the process of eutrophication? * i. Nutrients from agricultural runoff enter the waterbodies and the resulting algal bloom limits availability of sunlight and oxygen production, resulting in a hypoxic aquatic ecosystem and die off of aquatic wildlife. ii. Nitrogen-rich agricultural runoff enters aquatic ecosystems, resulting in increased nutrient availability and algal blooms. Oxygen is consumed when the bloom of aquatic vegetation dies off and decomposes, resulting in hypoxia and die-off of aquatic wildlife. iii. Nitrogen-rich agricultural runoff enters aquatic ecosystems, resulting in increased nutrient availability and algal blooms. The now-overpopulated aquatic plants consume most of the oxygen available in the watershed, resulting in hypoxia and die-off of aquatic wildlife. iv. Nitrogen-rich agricultural runoff results in exponential growth of aquatic flora, which provides a more abundant food source for aquatic wildlife. The resulting overpopulation by aquatic wildlife creates a hypoxic environment, which causes fish and other aquatic animals to suffocate​

Answer 1

Answer:

I OPITION IS CORRECT

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