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The Earth's structure is at the mercy of violent forces in its core, such as plate shifts, earthquakes, and volcanic activity. The hydrosphere and extreme weather also play a key role. Although these phenomena happen naturally, human intervention can make them worse. This photo-packed book shows readers what they can do to keep our planet healthy.

How do we know dinosaurs existed? How is bread made? How can a plane fly? Find out the answers to these and other questions about the world around us.

How many tastes can we recognize? Why do I hiccup and yawn? Why do I cry when something hurts? Discover the answers to these and other questions about the human body.

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This book introduces children to the fascinating variety of sharks and other marine animals that live underwater.

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Why are the dinosaurs extinct and other animals are not? What's it like inside a volcano? Where does wind come from? Discover the answers to these and other questions about the Earth.

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This book introduces children to over 20 kinds of dinosaurs. The accompanying poster reinforces comprehension.

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Starting with the Industrial Revolution, human action has negatively affected the environment. The demand for energy and resources and pollution have destroyed ecosystems. Filled with photographs and diagrams, this book clearly presents the science of ecology and explains our important role as protector of the planet.

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