Possible reasons for the interaction between pastoral and agrarian societies include
1.changes in climate
2.overpopulation
3.the development of trade routes
4.strong nomadic leadership wanting to expand their lands

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