On Earth, nothing is still. Mountains rise and fall. Tides ebb and flow. Even the continents themselves are on the move. Beneath the surface, a nuclear engine powers earthquakes, volcanic eruptions, and the shifting of continents. Above ground, the sun causes the wind to howl, rain to pour, rivers to churn, and oceans to swell with waves. Processes That Shape the Earth surveys these forces and the ways they sculpt the planet. The modern theory of plate tectonics is introduced, along with other pertinent topics in physical geology. Several chapters add relevant historical context, presenting readers with fascinating discussions of Earth's origin, its history over billions of years, and the recent changes that have resulted from human activity.

DK covers new ground with this series of unrivaled family reference titles. With full-color photographs and a fresh new look at favorite subjects, these remarkable books uncover the real story behind the natural phenomena that shape the world around us. See for Yourself: Water explains how rain, rivers, currents, and oceans shape our landscape and climate, support unique marine habitats, and threaten our coasts and cities with rising sea levels.