The Vietnam war was in favour of the Northern revolutionary forces. Just after the war, a peace treaty was signed which allows a government to be initiated in the Southern Vietnam, to find out that it has become a puppet government of the North, therefore, Vietnam remained to be a communist state.
Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.
it bans slavery
Hatred of the USA is the correct answer
The answer to the question above is to reduce air pollution in Mexico city.
In Mexico city, residents have been encouraged to use bicyles in order to reduce air pollution in the city. Using bicycle also helps reduce traffic congestion and decrease time spent on traveling to their destinations.