Nuestro medio ambiente en constante cambio (Our Ever-Changin

The earth is constantly changing. Earthquakes shake the ground. Volcanoes create new land. Water and wind erode rocks. These natural things are changing the face of our planet. Colorful images, supporting text, a glossary, table of contents, and index all work together in this Spanish-translated e-book to help readers better understand the content and be fully engaged from beginning to end.

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