11. This is based on the theory of nonrenewable resources. 12. We are saving nonrenewable resources with longer days, 13. The higher the per capita industrial output, the higher the nonrenewable resource consumption. 14. Thus a renewable resources becomes a nonrenewable one. 15. Helium is not only expensive in large quantities but is also a nonrenewable resource. 16. Of course, these oils are distilled from crude petroleum, a nonrenewable natural resource. 17. Most artificial trees are made in China using PVC plastic, which requires nonrenewable petroleum. 18. Many experts believe that fossil fuels and other nonrenewable energy sources contribute to global warming. 19. The model combines all possible nonrenewable resources into one aggregate variable, nonrenewable _ resources. 20. The model combines all possible nonrenewable resources into one aggregate variable, nonrenewable _ resources.
