Respuesta :
Answer:
the answer would be b. density
Explanation:
The density of ice is less than that of liquid water. ... Thus, the ice layer at lower temperature floats over the water below it. Due to this, the freezing of water into ice occurs continuously from the top towards the bottom.
When ponds freeze, they freeze at the surface first before freezing at the bottom. This explains the phenomenon of density variation. Thus, the correct option is B.
What is the density of water?
The density of water may be defined as the weight of the water per unit volume, which relies on the temperature of the water.
The density of ice is found to be lower than that of liquid water. This is the reason why ice floats on the surface of the water rather than submerged into it.
The same principle is applied to the freezing of ponds. The surface of the pond freezes more quickly as compared to the bottom due to density fluctuation between ice and water.
Therefore, the correct option is B.
To learn more about Density of water, refer to the link:
https://brainly.com/question/20713679
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