Why did a riot break out at the democratic national convention in 1968? ?

1. Police responded violently to the protestors.

3.Protestors became aggressive in expressing their views.

4.Protestors were angry about the war in Vietnam.

(A,C,D)

Explanation:

Edge 2020

the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.

answer; ///i believe that the correct answer is ; hieroglyphs or glyphs; the maya script, also known as maya glyphs, was the writing system of the maya civilization of mesoamerica; as always plz check first..good luck