What would happen to life on Earth if all the liquid fresh water were used up?

All known organisms need water to carry out essential life functions, such as moving materials through cells and conducting chemical reactions. Salt water cannot replace fresh water for most organisms, and desert plants still need water even though they can survive with very little. If all liquid fresh water were used up, life as we know it could no longer exist on Earth, so the correct choice is “Life could no longer exist on Earth.”

AI-written and checked against the verified answer.