What process do heterotrophic organisms use to release energy

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

It just all depends on where you live at the moment

The area of the indian subcontinent is 4.4 million km^2 whereas the usa is  9.8 million  km²

Nswer it was a class that admired the western culture