What is the main reason the Berlin Wall went up and fell?

It culminated in one of the most famous scenes in recent history - the fall of the Berlin Wall. The wall came down partly because of a bureaucratic accident but it fell amid a wave of revolutions that left the Soviet-led communist bloc teetering on the brink of collapse and helped define a new world order.

question 10: the answer is c, to their constituents address a problem.

question 11: i think it would be domestic bills, which deal with american issues only and public bills, which affect the whole nation.