Peggy J Parks

As Earth's population has continued to grow, reaching 7 billion people in 2011, much of the planet's available fresh water has become polluted, making it unfit for drinking, cooking, or bathing, and contributing to deadly maladies known as waterborne illnesses. This book will provide an overview of waterborne illnesses and explain the magnitude of the problem. Individual chapters focus on defining and explaining waterborne illnesses, such as Cholera,...

A biography of the scientist and humanitarian who discovered the vaccine for polio, a disease which crippled many people in the early part of the twentieth century.

Surveys the life and accomplishments of American inventor and mechanic, Robert Fulton, who is best known for building the first successful steamboat.

Through objective overviews, primary sources, and full color illustrations this title examines gay rights.

Covers the various positions available in the field of music, discussing qualifications, training, job opportunities, and technological advances.