(a) Outline the main components of an environmental impact assessment (EIA). What is the usefulness of an EIA in decision making for natural resource conservation? (b) Electric cars are recommended as replacements for cars based on fossil fuels. Why might or might not consumers voluntarily make the economically efficient choice to adopt electric cars? If indeed consumers do not adopt electric cars to an environmentally- efficient level, suggest what environmental policy measures the government could implement to rectify the problem.