Which of the following is NOT a function of the EPA?

The choice of promoting agricultural fertilization is not a function of the Environmental Protection Agency (EPA). The EPA's primary responsibilities include conducting research to better understand environmental issues, enforcing regulations to ensure compliance with environmental laws, and protecting public health by regulating pollutants and hazardous substances. While the EPA may involve itself in aspects related to agricultural practices, its mission does not include actively promoting practices such as fertilization. Instead, the agency focuses on ensuring that any agricultural practices adhere to environmental standards and do not pose risks to public health or the ecosystem.