Answer:
a. Environmental Kuznets Curve
Step-by-step explanation:
The Environmental Kuznets Curve is a theory that suggests that there is an inverted U-shaped relationship between economic development and environmental degradation. According to this theory, as a country's income increases, the level of environmental degradation initially rises, but once a certain income level is reached, further economic development leads to a decrease in environmental degradation. This is because as countries become wealthier, they have the resources and technology to invest in environmental protection and conservation measures. Therefore, increasing economic development eventually leads to less environmental degradation, as indicated by the Environmental Kuznets Curve.