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.
The City of Athens had a population of 13,084 as of July 1, 2015. Athens ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Texas. See peer rankings below. The primary coordinate point for Athens is located at latitude 32.2049 and longitude -95.8381 in Henderson County.