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)
Photo 3 of 8. The Environmental Protection Agency was formed in December 1970 after President Nixon submitted a plan to Congress calling for the creation of the agency.Before the EPA was created, our nation had no central authority overseeing the protection of the environment.The EPA writes and enforces rules governing human health and the environment and is currently led by Administrator Lisa Jackson.efore the EPA was created, our nation had no central authority overseeing the protection of the environment. The EPA writes and enforces rules governing human health and the environment and is currently led by Administrator Lisa Jackson.