Water is very important to l_____ things.Without water there can b______ no life on the earth.All animals and p______ need water.Man a______ needs water.We need water to drink,to c_____ our food and clean o_____.Water is n______ in factories,offices,schools and hospitals.
From space the earth l_____ like a huge water-covered globe.W______ covers about 70 percent of the earth's surface.There is water in oceans,sea,r______ and lakes.E______ in the driest part of the world.There is some water in the a______.Water is found almost everywhere.