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How much of the world is covered in water? What is the deepest-living fish? How are waves caused? Why are coral reefs in danger? Take a journey beneath the waves and into the deep, and collect some bite-size facts about oceans, marine life, and sunken treasures along the way. Fast Facts is a new series of high-interest, lower reading ability books aimed at fact-hungry children who enjoy information books but may be less confident readers or have difficulty with the usual quantity and level of text aimed at their age group.