Question

how do aquatic animals survive in the lakes and oceans ,even when the surface of the water body is forzen in extreme winters?

Answer 1

they have layers of fat called blubber which keeps their body warm and protects them from the icy cold water and air. thus they are able to survive.

Answer 2

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1. In cold countries, in winter, a layer of ice is formed on the surface of lakes when the atmospheric temperature falls below 0°C.

2. However, below this layer, there is water at 4°C.

3. Ice, being a bad conductor of heat, does not allow transfer of heat from this water to the atmosphere.

Hence, aquatic animals and plants can survive in this water.

Hope it helps!

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