Every organism that has walked on Earth leaves imprints. Humans are of no exception. However, the imprints humans leave may not be all good like pollution and damage to ecosystems. This science book discusses the many ways humans affect the environment. It also includes information on point and nonpoint sources of pollution. Get a copy today. Baby Professor showcases a collection of subjects that are educational for kids to help them learn how to do something themselves, exactly how something is done or how it came about. Children love to learn through attractive visuals and Baby Prof. is ideal to get your child the head start he or she needs for the future. Our Motto - "Learning is Fun, so let's Make it Fun to Learn".