What were the leading causes of the peloponnesian war? check all that apply. -delian league members had no say in government. -sparta was upset by athens’s growing power. -athens was forced to pay tribute to delian league members. -persia attacked athens and the delian league.

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.