Which of the following options is not a way to deal with permafrost? a. avoid it b. destroy it c. preserve it d. melt it

Most likely D.

Melting it will severly contribute to global warming, releasing methane and causing a positive feedback loop causing more permafrost to melt.

HEERREE is yourr answerr.

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