- Layers of the earth's atmosphere. TROPOSPHERE. The troposphere is the portion of the Earth's atmosphere that extends from the surface of the Earth to a height of about 3.7 miles (6 km) at the North Pole or the South Pole and 11.2 miles (18 km) at the equator.
A corrections officer is an officer responsible for the custody, safety, security, and supervision of inmates in a prison or any other correctional facility. Traditionally, terms such as jailer, jail guard, prison guard, and turnkey were used to refer to a corrections officer.
Correctional officers usually must be at least 18 to 21 years of age, must be a U.S. citizen or permanent resident, and must have no felony convictions. New applicants for federal corrections positions must be appointed before they are 37 years old.orrectional officers typically attend training at an academy before being assigned to a facility. Correctional officers go through a training academy and then are assigned to a facility for on-the-job training.