The aquatic water systems contribute to a major part on the earth surface. It can be a marine such as oceans or freshwatersystems such as lakes, ponds, and rivers. On the basis of nutrient content in them, they can be classified as oligotrophic or nutrient-deficient and eutrophic waters or nutrient-rich water systems. The amount of microbial population in them depends on the nutrient content of the water.

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Chapter 28, Problem 4MC

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The aquatic water systems contribute to a major part on the earth surface. It can be a marine such as oceans or freshwatersystems such as lakes, ponds, and rivers. On the basis of nutrient content in them, they can be classified as oligotrophic or nutrient-deficient and eutrophic waters or nutrient-rich water systems. The amount of microbial population in them depends on the nutrient content of the water.

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