How did the kelly-bessemer process make iron and steel production better?
it brought temperatures down so that the iron or steel could harden more quickly.
the process enabled manufacturers to make steel at a far greater rate.
it mixed impurities in the iron ore enough to eliminate the problem of weakening,
it shot air into the molten iron, making it hotter and eliminating impurities.

During andrew johnson’s presidency, the radical republicans gained control over policymaking in congress. they had enough power to override any presidential veto. how did the radical republicans use this opportunity? a. they blocked johnson’s weak reconstruction policies by taking charge of the reconstruction plan. b. they extended their support to johnson’s policies for reconstruction of the south. c. they removed johnson from office and took over the task of reconstructing the south. d. they removed all former confederates from office and stopped the south from rejoining the union.