Albert einstein's work contributed to
. select all that apply.

20 points how did oklahoma pay for new initiatives when it became a state? a. oklahoma asked the federal government for financial support. b. oklahoma sold parcels of land to prospectors to raise money. c. oklahoma imposed tariffs on goods imported from outside the state. d. oklahoma implemented a sales tax on goods and property.

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?

Which physical feature minimizes population density in northern africa?