Answer: D) Companies replaced hand-operated brakes with air brakes on trains.
B)the professional success of Jackie Robinson and
Willie Mays. Both were African
Americans who played professional baseball and helped promote integration in
sports. Despite their initial hardships
both players led their teams to victory and most importantly overcame racisms
in professional sports.
A Comparison Between Medieval and Renaissance Art. The most significant difference between medieval and renaissance art is that renaissance art paid more attention to the human body, and to detail. Both, however, focused mainly on religious themes, although not necessarily Christian.
HOPE THIS HELPED!!! XD
First blank Roads and not sure about the second sorry.
