Carbon is an element found in nature that is essential for life. Carbon dioxide (7 letters) is a gas composed of one carbon atom and two oxygen atoms, and is a major component of the Earth's atmosphere. Tet (3 letters) is short for tetrahedral, which is a type of molecule with four atoms arranged in a pyramid shape. Carbon COPY (4 letters) is a phrase used to describe an exact duplicate of something. LEAF (4 letters) is a term used to describe the green, flat organ of a plant that is responsible for photosynthesis. Carbon monoxide (8 letters) is a colorless, odorless gas composed of one carbon atom and one oxygen atom.