Answer: self production
Explanation: Plants tends to manufacture for them self unlike animals, they use the energy gotten from the sun to convert carbon dioxide and water in energy rich sugar called glucose.
Also plants use leaves to make food for them self, oxygen is produced as a by-product and carbon dioxide is gotten from the atmosphere.
For me, personally, Romeo's love never seemed real, especially if you take into consideration that Romeo and Juliet knew each other for about a month, or so. You cannot start loving someone in such a short period of time, especially given that Romeo is like 18, and Juliet 14.
Compared to modern ideas of love, their love is much more romanticized, it no longer exists (if it ever did), and it seems quite unreal.
A direct comparison is a metaphor.
