Klappentext

Our planet's water is one of mankind's most valuable natural resources. Without it, there would be no life at all on Earth. The informative guides in this set explore all things water-related, from the ways people deal with wastewater to the water cycle itself. The accessible text is paired with vibrant color photographs, charts, and informative fact boxes. Reader will learn why our water supply is so important and discover ways they can help to protect it for future generations.