Why did japan open its ports to european trade after centuries of isolationism?

Which of the following could be seen as a weakness of a two-party system? a. the two-party system limits voters' options in electing officials.b. the two-party system limits debate on issues.c. the two-party system limits the range of solutions that will be considered.d. all of these are weaknesses

The andean nation of bolivia is poor but rich and natural attractions that file growing ecotourism economy

How did the style of ealier pyramids differ from the style of the great pyramid