The Education for All Handicapped Children Act (P.L. 94-142) of 1975 and the Individuals with Disabilities Education Act (IDEA) (P. L. 101-476) identified specific categories of disabilities under which children may be eligible for special education and related services. The most recent legislation, the IDEA Amendments of 1997 (P.L. 105-17), allows states and local education agencies to apply the term developmental delay for children ages 3-9.
Upcycling, also known as creative reuse, is the process of transforming by-products, waste materials, useless, or unwanted products into new materials or products of better quality or for better environmental value.
Nutrient cycling is one of the most important processes that occur in an ecosystem. The nutrient cycle describes the use, movement, and recycling of nutrients in the environment.