These photos show what happens when your water tank is low and you don’t have them cleaned!

Adult humans are 60 percent water, and our blood is 90 percent water. The amount of salt in salt water varies. Some water may have come from comets. Water is the only substance that occurs in three states of matter eg. Ice, Water and Steam. Water controls the Earth’s temperature. Groundwater is the most abundant freshwater resource. Water is called the “universal solvent” because