Most autotrophs use water as the reducing agent, but some can use other hydrogen compounds such as hydrogen sulfide. Phototrophs (green plants and algae), a type of autotroph, convert electromagnetic energy from sunlight into chemical energy in the form of reduced carbon.
Athens is a city in and the county seat of Athens County, Ohio, United States. It is located along the Hocking River in the southeastern part of Ohio. A historic college town, Athens is home to Ohio University (26,000+ students) and is the principal city of the Athens, Ohio Micropolitan Statistical Area. The official population of Athens in the 2010 U.S. Census was 23,832.
A large number of places on campus are said to be haunted, and numerous other popular tales are told about the university across Athens county. The British Society for Psychical Research claims that Athens, Ohio, is one of the most haunted places in the world.