Final answer:
The environmental Kuznets curve is commonly represented as an inverted U-shape, where environmental quality initially decreases with economic growth and then improves after a certain level of economic development is reached.
Step-by-step explanation:
The environmental Kuznets curve is a hypothesized relationship between environmental quality and economic development.
Among the given options, the environmental Kuznets curve is often represented as an inverted U-shape. This suggests that environmental degradation increases with economic growth up to a certain point, after which it starts declining.
Forming an inverted U-shape on a graph with environmental degradation on the vertical axis and economic development on the horizontal axis.