Emissions has to the the answer. Though it could be Frequency range, but I doubt it.
This is false, and the opposite is true!
A want, used as a noun, refers to something that is not necessary, but something that is wanted, desired only.
A need, in contrast, refers to something that is necessary, so it is not merely something that is wanted, but something that is very essential.
The answer is "major division"
Nations are protesting the government's human rights violations. The White House cited China's human rights records as a reason for why the U.S. will not send an official delegation to the Winter Olympic Games in China early next year