B.
because the more car the more carbon dioxide is released in to the air
The trophi are responsible for crushing food
Answer: Plant growth over time
Explanation:
i would say that because its very likely that the growth of the plant will change, the rest of them seem like a independent variable. Have a good day hope i helped.
Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.
