30. Economists tend to believe the most efficient way to induce environmental protection is through a. standards that control economic activities b. government provision of environmentally sensitive goods and services c. market-based incentives such as taxes and subsidies d. economic planning e. none of the above 31. Reduction in the quality of agricultural land through overuse is called a. degradation b. deforestation c. desertification d. defenestration. e. none of the above 32. Adjustments to GDP to account for environmental impacts is a. Eco development b. sustainable growth c. externalities d. environmental accounting e. none of the above