During photosynthesis, a chemical called chlorophyll absorbs the light energy and encourages a reaction between carbon dioxide and water that results in glucose and oxygen. Oxygen is expelled as a waste product from the plant, and it enters the atmosphere.
The EPA was proposed by President Richard Nixon and began operation on December 2, 1970, after Nixon signed an executive order. The order establishing the EPA was ratified by committee hearings in the House and Senate. The agency is led by its Administrator, who is appointed by the president and approved by Congress.
By most accounts, he was not a nice person. That being said, Nixonâs signature made some of the most important environmental legislation in U.S. history into law. Look at some of the environmental legislation Nixon signed into law. In 1970 he signed the Clean Air Act and created the Environmental Protection Agency.