Answer:
USA did make many bombing campaigns against North Vietnam, which only alienated the population but could not degrade the fighting force of the Vietcong. ... Support of China /USSR: One of the most crucial reasons for the defeat of the USA was the unflinching support of China and the Soviet Union to the North Vietnam.
I believe it's colonial assemblies.
Hope this helps!
Is 3 the battle against the plague
#2- Trade emerged as a main source of income.
<em>I agree.</em><em> </em><em>The scientific revolution brought light to some views and changed some beliefs humans had about how politics, life and many other topics. Until then a lot of natural phenomena were explained mainly by God hands, there was no much understanding of how things worked and humans could not interfere as much because they relied mostly on faith for changes in daily life, after the scientific revolution the humans during the Enlightenment started to take more responsibility for their healthy, nature disasters and the elections of their political representing, which before were believed to be indicated by God.</em>
