Primary energy is produced through the consumption of natural resources, renewable and nonrenewable. The matrix phase is formed by polymers derived from renewable and nonrenewable resources. Hence bioplastic environmental impacts are categorized into nonrenewable energy use, climate change, eutrophication and acidification. Examples of nonrenewable energy resources would include oil and coal. Progressive Savings nonrenewable natural resources and rational use of national resources. The higher the per capita industrial output, the higher the nonrenewable resource consumption. This assumption allows costless substitution between any nonrenewable resource. Examples of material nonrenewable resources would include aluminum and zinc. Helium is not only expensive in large quantities but is also a nonrenewable resource. The model combines all possible nonrenewable resources into one aggregate variable, nonrenewable resources. This is based on the theory of nonrenewable resources. The court president and vice president appointed for 8-year nonrenewable terms. The Byrd Honors Scholarships were established in 1985, providing $1,500 nonrenewable scholarships to eligible students.