Final answer:
The superfund amendments and reauthorization act of 1986 (SARA) implemented all of the above elements: improved waste management practices, increased liability for polluters, and enhanced public participation. Option 4 is correct.
Step-by-step explanation:
The superfund amendments and reauthorization act of 1986 (SARA) implemented all of the above elements: improved waste management practices, increased liability for polluters, and enhanced public participation.
SARA renewed funding for the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund. The act imposed stronger standards by requiring more responsible waste management practices, holding polluters more accountable for the cleanup of hazardous waste sites, and involving the public in the decision-making process.
For example, SARA established the Community Right-to-Know provisions, which require industries to provide information about hazardous substances they produce or store to local communities and emergency responders.