Green plants produce sugar in their leaves through the process of photosynthesis. To make this sugar, plants must acquire some m
aterials from their environment. Arrow 1 represents _______, a gas that is taken in by the plant from the atmosphere. A. Helium B. Hydrogen C. Carbon dioxide
In a process called “photosynthesis,” plants use the energy in sunlight to convert CO2 and water to sugar and oxygen. The plants use the sugar for food—food that we use, too, when we eat plants or animals that have eaten plants — and they release the oxygen into the atmosphere.