Question

multiple choice question identify an unusual property of water that is essential for the survival of both freshwater and marine organisms. the latent heat of vaporization of water is low. water is less dense as a solid than as a liquid. the evaporation rate of water increases with increase in temperature. water has a high latent heat of melting.

Explanation:

Water being less dense as a solid (ice) than as a liquid is crucial for aquatic life. Ice floats on water, creating an insulating layer that protects organisms in water bodies from freezing completely during cold - weather. This property is unusual compared to most substances which are denser as solids. The other properties mentioned are common or not as directly related to the survival of aquatic organisms in the same way.

Answer:

Water is less dense as a solid than as a liquid.