human
Question: Fish can live in lakes that are frozen because liquid water remains below the ice at the surface. Which of these describes a property of water that allows some liquid water to remain in frozen lakes?

Choices:
A) Water can dissolve many different substances.
B) Water is less dense as a solid than as a liquid.
C) Water has a Mohs hardness of about 2 when it is frozen.
D) Water holds less air at higher temperatures.
gpt
The correct answer is 1: Water is less dense as a solid than as a liquid..