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Seriously?

No offense, but it's quite difficult to believe you comprehend the definition of the word "ecosystem" without knowing where water fits into the picture... anyway-

Water is essential to all life. Even plants in the driest most arid desert, cacti for instance, hoard water every bit as greedily as way modern humans hoard money.

So in short- the role of water is to keep an ecosystem afloat. In multiple senses of the word. We are composed of mostly water. We drink water. We breathe water vapor. Water is ubiquitous, and without it not a single ecosystem would have the ability to sustain itself.

Not even space, which hardly qualifies as an ecosystem in the typical sense, contains inordinate amounts of water (obviously in the form of ice);there aren't even any living organisms in that environment and it retains some form of H2O. this should provide some perspective on water's role(s) in ecosystems.

Though if you ask me, the question should've been what roles doesn't water play in an ecosystem?

That answer would have been under twenty words :)

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14y ago

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