Importance of Water to Life

1. Why is water important?
   1. Life probably evolved in water.
   2. Living cells are 70% - 95% water.
   3. Water covers about 3/4 of the earth.
   4. In nature, water naturally exists in all three physical states of matter -- solid, liquid, and gas.
   5. Life absolutely depends on the properties of water.
   6. Water's extraordinary properties are emergent properties resulting from water's structure and molecular interactions.

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