What invention of tang dynasty was later used in the sung dynasty in the wars against the mongols?

a) seismograph

b) wheelbarrow

c) gunpowder

d) compass

What triumphs did the late 19th century witness in the realms of industrial growth, urbanization, and technological innovation? what challenges did these developments pose for urban dwellers, workers, and recent immigrants? how did city officials and everyday citizens respond to these challenges?

The directory was unsuccessful and was eventually replaced because no constitution had been created that outlined its authority. it was connected with the reign of terror. its members did not get along with napoleon. the national convention did not agree with the directory's decisions.

Explain how colonists treated the native americans and what happened to natives. ! ^^^ 12 points