How did General Grant's and General Sherman's actions lend to the end of the war? How did the war both hurt and help Lincoln's chances for reelection ?
Compare the losses suffered by the North and by the South.

Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.