Water ecology, water chemistry, plants and animals living in or around water, water quality, water conservation, etc.
The current issue is a topic selected annually by the National Envirothon Planning Committees. This information is used for the national competition.
Click the book to take you to the book site. Chapters (listed at the bottom of the page) & pages to concentrate on will be listed asap.
Forest ecology, tree identification, insects, diseases, timber measurements, forest management, urban forestry, forest economics, etc.
SOIL & LAND USE
Classification, soil formation, basic chemical and physical properties, profiles, soil characteristics, soil surveys, site suitability, erosion, land use, conservation practices, etc.
Identification, habitat, foods, diseases, rules and regulations, management, invasives, etc.