Ecology is the study of the relationships between living organisms, including humans, and their physical environment; it seeks to understand the vital connections between plants and animals and the world around them.
In Common Usage. documentation is one of the 10000 most commonly used words in the Collins dictionary.
adjective. noun. The definition of documentary is a film or television program that shows a story or situation truthfully. An example of something documentary is evidence that proves someone's alibi during the time of a murder; documentary evidence. A documentary is defined as a film or television program that is educational and tells a true story. An example of a documentary is the An Inconvenient Truth, a movie about global warming.