Salmon are among the most amazing fish in the world, but they are in danger of extinction. In this book, you will learn what makes salmon unique and what is causing their endangerment, especially in the Pacific Northwest of North America. Is there a way to protect and restore salmon species? Read and find out!
Energy Sources: The Pros and Cons informs readers about the major sources of energy consumed in the world today: fossil fuels, hydroelectric energy, solar and wind energy, and nuclear power. Discussions of the pros and cons of each source are included, allowing readers to form their own opinion about the use of each type of energy. Photographs, charts, and diagrams support the text.
Microbes: Friend or Foe? is an informational book that gives readers a close look at microbes-including bacteria, viruses, fungi, and protozoa. The book provides examples of how microbes are both helpful and harmful. It explains how they are spread and how bad microbes are fought using vaccines and antibiotics. Photographs, a map, and a chart support the text.