Photosynthesis is the first step in the food chain which connects all living things. Every creature on earth depends to some degree on green plants. The oxygen that is released by the process of photosynthesis is an essential exchange for all living things. But every year, over 28 million acres of tropical forest are cut and then burned to clear land for farming. Things to Talk About The Newton's Apple segment on photosynthesis talks about a few of the implications of rain forest destruction for people around the world.
Chlorophyll absorbs energy from sunlight which a plant uses to make food.
Blue Ridge Summit, PA, Tab Books, 1989. How Green Plants Make and Use Foods. University of Minnesota Films, 1984. The American Forest Council, Washington, DC, 1988. Discover what happens if you change the patterns of a plant's light source.