Final answer:
The process by which an environmental protection act is created and enforced involves multiple steps: proposal, research, enforcement, and legislation.
Step-by-step explanation:
The process by which an environmental protection act is created and enforced involves multiple steps. The correct order of these steps is c) Proposal, Research, Enforcement, Legislation. First, a proposal for the act is made, usually by a government agency or lawmaker. This proposal is based on research and analysis of the environmental issue at hand. Once the proposal is made, it goes through a process of enforcement, where the government agency responsible for environmental protection implements regulations and monitors compliance. Finally, the proposal becomes legislation through the legislative process, which involves debate and approval by lawmakers.