Answer:
photosynthesis process uses the sun's energy to combine carbon dioxide and water to form glucose, a sugar. Carbon dioxide enters plants through tiny pores in the bottoms of leaves or by diffusion through cell membranes in the case of algae and protists.
Photosythesis
CO2 + H2O + ( sunlight ) = glucose + O2
Humans can make a difference but carbon is everywhere. This generation has the largest carbon footprint yet.