Final answer:
Market-oriented environmental policies, such as pollution charges, marketable permits, and better-defined property rights, are typically adopted to achieve the goal of reducing pollution in society.
Step-by-step explanation:
When society requires that firms reduce pollution, the approach typically adopted to achieve this goal is through market-oriented environmental policies. These policies create incentives for firms to reduce pollution by allowing them flexibility in finding the least expensive technologies to do so. The main categories of market-oriented approaches to pollution control include pollution charges, marketable permits, and better-defined property rights.