The National Wildlife Federation lesson plans are designed to introduce students to life science, ecology, wildlife biology, scientific identification and observation. All lesson plans are aligned to the National Science Education Standards and organized by grade level.
DEFINITION: Hard to understand; not clear or lucid; obscure.
FOUND IN THE NEWS:
The Herald described how money routed through opaque offshore companies and then funneled into South Florida real estate was distorting the market by pushing up prices, especially for luxury waterfront condos. ►The Miami Herald -- 02/13/2017