Conservation of natural resources is important to MNCs. The most widely accepted thesis is a: bell shaped curve that depends on the population in a country. U-shape which is better when the country is new and gets better as the population increases because they know more about the environment. inverted U-shape which hypothesizes that the relationship between per capita income and the use of natural resources and/or emission of wastes. triangular shape that narrows as a society becomes more educated