Earth is basically from matter, all the matter around the Universe came together to form Earth, the only way for Earth to grow much bigger is if there was an unlimited supply of matter, there isn't and therefore Earth cannot get much bigger than it is now.
Answer:
I'm pretty sure it's D but it might not be
Answer:
I'd say that's probably false
Explanation:
It seems like they would explain a little about the society so I don't know why that'd be false