From the outside, they're simply a group of urban teenagers. But from the inside, they're some of the most complex people you'll ever meet. There's Eric, fiercely protective of his brother Mickey-but he has a secret that holds together his past and future. Sonia, struggling to live the life of a goo[...]

This newly updated reference uses scientific laws, principles, models, and concepts to provide a basic foundation for understanding and evaluating the impact that chemicals and technology have on the environment. Designed for both professional and student use, the new Second Edition includes recent [...]