Which environmental sphere includes every natural habitat in which plants and animals live? a. atmosphere b. biosphere c. hemisphere d. lithosphere select the best answer from the choices provided a

I think it's B: Biosphere

Answer is B. biosphere

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years