What would happen to aquatic life if the density of ice was greater than the density if water?
Since the density of ice is less than the density of water, bodies of water freeze from the top to the bottom. This actually provides insulation to the water under the ice, preventing all the water from freezing. This allows life to continue under the ice, provided there is sufficient nutrients. If the density of ice was greater than the density of water, bodies of water would freeze from the bottom to the top, providing no insulation, and allowing all the water to freeze. This environment is not suitable for many life forms.
