It is generally believed that there is a good supply of fresh water.

As we can see, the world population is growing rapidly day by day. So enough fresh water is needed to feed such a big population. What’s more, with the development of industry, factories and vehicles produce poisonous gases or wastes, which consequently results in the pollution of water. Though fresh, a good amount of it can no longer be used. Only quite limited fresh water resource is available to human beings. So it’s high time for us human beings to take quick action to protect water resource. Stop pollution and save water, otherwise, we cannot survive on the earth.

Water is very important for living things. Without water there can be no life on earth. All plants and animals need water. Man also needs water. Water is found almost everywhere. Even in the driest part of the world there is some water in the air. Water, which you have found out, may be a solid, or a liquid or a gas. When it is a solid, it may be as hard as a brick. When it is a liquid, you can pour it out from a container. When it is gas, you cannot see it or feel it. Although about 70 percent of the earth’s surface is covered by water, there are many places in the world still running out of water. So we should make good use of water on earth.

With fresh water, the world will be prosperous.