About Estuaries - Where Rivers Meet the Sea

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What Role do Estuaries Play in Earth’s Cycles?

Estuaries are connected to many different cycles on Earth including the nutrient cycle, the water cycle and the cycle of life.
In the nutrient cycle, estuaries serve as a place were many elements are recycled and made available to living organisms. These elements must be kept in balance to maintain the health of the estuary.
In the water cycle, estuaries serve as places where evaporation of water occurs, and also serve to recharge ground water.
In the cycle of life, estuaries provide shelter, food and nursery grounds for animals. Decomposing animals in estuaries can provide nutrients for other organisms.

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Last Updated on: 06-12-2008