The density of water is highest ( 1 kg/l) at 4 deg. Celsius. The density of ice is thetefore lower than the density of water at 4deg. Celsius.For all the other materials; density of the solid is higher than density of liquid. Because of this characteristic of water , life is maintained on Earth.
Please show your known examples.
Dear Zin Eddine;
Surely it survive the aquatic life. (the attached image)
But let see the subject from another view; Let imagine the density of Ice be higher than water! When the temperature rises to 0 degrees Celsius, the water starts to freeze. As we imagine ice density is higher than water, the ice should fall down, and we have fresh water in contact of 0 degrees Celsius of atmosphere, which again and again causes the same. Therefore, after a while we will have a frozen Earth!! Thank God the density of water is higher than ice. ;)
What's your idea?!
The following link explains why does ice float on water
https://www.sciencefacts.net/why-does-ice-float-on-water.html
Best Regards Zin Eddine Dadach
Life is possible On earth because the highest density of water 1kg/L is at 4oC. Ice can float on water. Otherwise oceans will become frozen and no life is possible.