Includes coverage of forefront fields such as cell and molecular biology, environmental science, genetics, information technology, nanotechnology, chemistry, and theoretical physics An extensive subject index makes finding information fast and easy Features numerous cross-references to the McGraw-Hill Encyclopedia of Science & Technology and bibliographies of key literature after each article 250+ images, diagrams, and tables enhance the text

More than 150 articles explore the latest advances in science and technology For more than 45 years, this annual publication has made information on the latest trends and developments in science and technology accessible to non-specialists through concise, well-illustrated articles. Readers will find 150 articles from 200+ leaders in their respective fields covering disciplines from Astronomy to Zoology. The Yearbook will be of interest to students, writers, researchers, professionals, and general readers.

From one of the most trusted sources for high quality information, authoritative reviews of the most significant recent developments in science and technology. Edited and illustrated for clarity and ease of understanding by non-specialist and expert alike.

An evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for co