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