Answer:energy in the form of heat and matter (nutrients, solids, dissolved substances, and gases)
Explanation:
Famine- High population means more mouths to feed
Disease- Diseases usually spread more quickly with people who live closer( as it can just move from one person to the other)
War- People like to fight for land, resources, money, etc. And having more of those things mean they are more able to support families, communities, and more.
(Hope this helps a little)
I believe the answer is protein
I think its A but I'm not sure.
Body transformation chemical energy then thermal energy most occurs in stomach
