[Solved] According to Eaton, there are two stages of cause and effect operating in the harm hypothesis: the first stage involves pornography's impact on its consumers and the second stage involves the actions of consumers that injure others. Bar Code Tracking: A system for monitoring and managing inventory, shipments, or equipment by scanning bar codes to record and retrieve information quickly. Inventory: Inventory refers to the goods and materials that a business holds for the ultimate goal of resale, production, or utilization in service delivery. Corrosive: A substance capable of chemically attacking another. Hearing Protection: Devices or equipment worn to reduce the level of sound entering the ears, essential in environments with potentially harmful noise levels.