PLS HELP It is believed that the Indus civilization was very large because .
A.
they built a sophisticated road system
B.
the valley is in both India and Pakistan
C.
hundreds of miles separated major cities
D.
they constructed a widespread irrigation system

Describe the social and economic effect of world war on england and usa

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.

Which statement is true of both presidential and parliamentary systems of government?