Answer:
I'm not too sure but I think it's the need for medical plants
I would have chosen the need for oil, but I can't think of the way oil affects plants
Petroleum Products
Petroleum and its products are mainly composed of carbon polymers (chains), as the backbone, with different structural and functional groups. Plastic, for example, is made of polypropylene and polybutylene which is mainly made of carbon atoms, whose monomers are linked in a chain to form polymers that make up the products.
Synthetic rubber on the other hand is made of copolymers of carbon and other addictives such as styrene. Synthetic fiber is made of nylon that is composed of a copolymer between carboxylic acid and amides.
That is an example of thermal energy which was passed on by conduction.
The Outer core is liquid and moving.
Earth's core is composed of Iron and Nickel.
