Presents an examination of the Aztec civilization, discussing family and society, government and law, education and communication, architecture, arts and crafts, economy, warfare, and religion.
Color photos fill this look at the polar bear, which describes its physical characteristics, hunting methods, eating and fasting periods, and enemies. Also includes a glossary and a list of related resources.
Examines various methods of handling waste products, including landfills, incineration, recycling, and reducing the amount of garbage produced, as well as future possibilities for waste management.
Discusses the difference between reusing and recycling, examines some of the challenges involved in recycling, looks at the environmental benefits of the practice, and considers the future of recycling.
