"A+."

First published: London : Hodder Wayland, 2004.

Includes bibliographical references (p. 47) and index.

What are oceans? -- Ocean exploration -- Into the deep -- Submarine world -- Crust of earth -- Fiery destruction -- Filling the gaps -- Magnetic strips -- Expanding oceans -- Ocean water -- Tides and currents -- Riches from the deep -- Ocean gardens -- Shallow seas -- Open coeans-- Dark depths -- Ocean tourism -- Mineral riches -- Ocean fisheries -- Polluting the oceans -- Ocean futures -- Glossary -- Further information -- Index.

Provides information on how oceans are formed, what they contain, the effect of ocean currents, and environmental issues. Earth's oceans cover 70 percent of its surface, and in this book you will find all you need to know about how they were formed and what they contain, the special characteristics of ocean wildlife both in shallow, sunlit water and in the dark depths, the effects of ocean currents, and how people use and abuse ocean resources.