Explain why the density of water is important to life on earth

I think if the density of water is more than what we have now it would be difficult to trade and drink the water

As water is very essential for human life it is better to save the water and I wish the water to maintain the same density which it is having in the present

Hope my answer is helpful to you
Thank you

Ice floats because it’s molecules are less densely packed than those in liquid water.
Ponds and lakes would freeze from bottom up, trapping the fish and other organisms in a shrinking layer of water without access to the nutrients from the muddy bottom.

The correct answer is d