Question

In cold countries, water in lake freezes,but not so in the case of sea water.why?

Answer 1

Explanation:

Because the sea water contains more salt than river water and also doesn't allow the water to freeze

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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