By MICHAEL IP. Forty years ago, on March 29, 1973, the United States ended its military involvement in Vietnam. Although the war would continue another two years, the South Vietnamese would no longer receive American assistance.
Ecology (from Greek: Î¿á¼¶ÎºÎ¿Ï, house, or environment; -Î»Î¿Î³Î¯Î±, study of) is the scientific analysis and study of interactions among organisms and their environment. It is an interdisciplinary field that includes biology, geography, and Earth science.
The study of how living things interact with each other and with their environment is called ecology. 1.the branch of biology that deals with the relations of organisms to onâ¦e another and to their physical surroundings.2.the political movement that seeks to protect the environment, especially from pollution.