Final answer:
The Organic Act of 1916 established the National Park Service . Option A
Step-by-step explanation:
The Organic Act of 1916 established the National Park Service (Option A). This act was a significant milestone in the administration of national parks and monuments in the United States. It mandated that parks be maintained in a way that left them unimpaired for future generations, reflecting a shift in policy towards preservationism.
The United States government agency responsible for water quality standards is the Environmental Protection Agency (EPA), which was created in 1970. The EPA conducts research, promotes education about the environment, and enforces federal environmental protection standards, including those related to water quality.
The involvement of biologists and the need for environmental protection have been underscored by several pieces of legislation such as the National Environmental Policy Act (1970), the Endangered Species Act (1973), and the Clean Water Act (1972), highlighting the expanding role of scientific and federal oversight in conservation efforts. Option A