Question

How is aquatic life benefitted by the fact that water has maximum density at 4°C?

Answer 1

Answer:

The property of anomalous expansion of water enables aquatic life to exist because water freezes on the surface of the water body, but it is still liquid below the ice layer.

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Answer 2

Answer:

The density of water is approx. one gram per cubic centimeter. It is dependent on its temperature but the relation is not linear. When cooled from room temperature, liquid water becomes dense but at 4

0

C pure water reaches its maximum density. As it is cooled it expands to become less dense. So the layer of ice floats on water as insulating layer. The warm layer settles at the bottom in winters and so aquatic life exists.