Productores y consumidores (Producers and Consumers)

Most of the Earth's changes happen over millions of years, but earthquakes can force significant changes to the land in just a few moments. Readers will learn the science of plate tectonics and its role in the development of earthquakes around the globe. They will also learn that not all rocks are created equal. In fact, rocks are all different ages! This Spanish-translated book concludes with images of the damage and destruction that earthquakes can cause.

There is so much to explore in the Amazon! Readers are taken on an adventure through the Amazon rainforest to learn about the lush plants and beautiful animals, deforestation, and rainforest conservation in this fascinating, Spanish-translated nonfiction title that features striking photographs and riveting facts.

Este libro de Biología y Geología esta dedicado a los alumnos de 1o de Bachillerato, su contenido esta dividido en seis bloques temáticos: La geología y la biología como ciencias naturales, Estructura y dinámica de la Tierra, Los materiales de la Tierra, Uniformidad y diversidad de los seres vivos, Mantenimiento de la vida y Perpetuación de la vida.

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

The plot of The Empty Region takes the reader from the military camps of holy warriors in Pakistan, to the security corridors of the CIA and the FBI. It’s a fascinating puzzle inhabited by historical characters, including Osama bin Laden and George W. Bush, as well as officials aware of the tragedy´s secrets. Szichman leads us along the terminals where the air pirates of al-Qaida consummated their tragic ritual, makes us travel on the airplanes, turned into guided missiles, and recreates the 102 minutes when the burning towers of the World Trade Center became hell on earth. Although...

Mike Wingate ha tenido una infancia difícil. Lo abandonaron en un parque cuando tenía cuatro años y creció en un orfanato. Nadie volvió a por él y solo tiene unos cuantos recuerdos dispersos de sus padres. Ahora que ya es adulto, Mike está viviendo la vid