"Living things depend on a few invisible but essential nutrients to survive. These nutrients each have their own purpose. But they are also interconnected in the nutrient cycle"--Provided by publisher.
Water is essential to life on our planet. Water is constantly moving between Earth's surface, the air, and the ground. But did you know that water cannot be created or destroyed? Or that water is not only a liquid but also a solid and a gas? See the water cycle in action in this fascinating book.
In this companion book to the television series, six of the most spectacular natural phenomena on our planet are explored--the flooding of the Okavango Delta in Botswana; the melting of 10 million square kilometers of ice in the Arctic; the migration of the Serengeti; the great salmon run in British Columbia; the explosion of sea life in Alaska's coastal waters; and perhaps the greatest marine spectacle on the planet, the annual tide of sardines along South Africa's east coast.
