Several animal species are able to hear frequencies well beyond the human hearing range. Some dolphins and bats, for example, can hear frequencies up to 100 kHz. Elephants can hear sounds at 14â16 Hz, while some whales can hear infrasonic sounds as low as 7 Hz (in water).
Several federal agencies were established during the Nixon Administration. These include: 1  OSHA (Occupational Safety and Health Administration) 2  MSHA (Mine Safety and Health Administration)  NIOSH (National Institute for Occupational Safety and Health)
Environmental Protection Agency (EPA) What was the 'Environmental Protection Agency (EPA) '. The Environmental Protection Agency (EPA) was established in December 1970 under United States President Richard Nixon. The EPA is an agency of the United States federal government whose mission is to protect human and environmental health.