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The temperature of water at the bottom of a lake whose upper surface has frozen to ice would be around

Options

  1. A-10^ C
  2. B0^ C
  3. C4^ C
  4. D-4^ C

Correct answer

C. 4^ C

Step-by-step solution

The anomalous expansion of water has a favourable effect for animals living in water. Since, the water density is maximum at 4^ C , water at the bottom of the lakes remains at 4^ C in winter even if that at the surface freezes. This allows marine animals to remain alive and move near the bottom.

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