<span> The correct answer is kaminaljuyu</span>
Answer:
Indus river (India): Harappa And the city of Mohenjo-daro
Nile river (Egypt): Ancient egyptian pryramid structures, obelisks, System of mathmatics, Medicine development, etc.
Huang he (China): The great wall of china build, development of budda religion, growing rice products.
Tigris-Euphrates (Mesopotamia): The wheel, plow tool, and cut canals and river connections.
It helped to spread Enlightenment ideas.
B) Striking workers in Poland started the Poznan uprising. The Poznan protests, which took place in 1956, were several massive protests against the government of Poland, for workers to receive better job conditions, however the government met this with violent repression.
I believe the answer is Mongols
