What are the pros and cons of technology in war? how has technology changed war of the last few hundred years?

He seventeenth amendment to the us constitution calls for the direct election of all us senators. this means that the people of each state get to vote to decide who will be their two us senators. before this, the legislatures of each state chose the two us senators from that state with no direct involvement of the average voter. why would this amendment be considered a reform? how would it benefit the people? even today some people claim that the seventeenth amendment was a bad idea. what arguments could be made for reverting selection of us senators back to the state legislatures?

The mauryan empire covered most of which modern country

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price