Choose all that apply. What are four reasons for the fall of the Indus Valley civilizations?

earthquakes and tectonic uplifts
decreases in trade
emigration to other countries to get jobs
recurring floods
Aryan invasions
lack of natural resources
Chinese invasions

According to marx, which of the following would be the main characteristic of communism? a. a community which work was shared and property was owned in common b. a classless society in which wealth and power were equally shared c. a society in which the economy function without government interference d. an economy in which private individuals owned the means of production.

How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

The "nationalists" and fascists battled against the "republicans" and communists in a civil war in the 1930s in