Humans can make a difference but carbon is everywhere. This generation has the largest carbon footprint yet.
Answer: Helps the plant breathe: The epidermis of the leaf contains guard cells that control and regulate the small pores on the undersurface of the leaves. These pores are called stomata. Stomata are responsible for regulating water in and out of the cell. It is also responsible for the exchange of gases across the epidermis.
Both plant and animal cells have a nucleus and mitochondria
Green, like grass and trees...?
