Harriet Tubman aided slaves from the south to escape their captors. She courageously set up the Underground Railroad by marking trees, and whites who opposed slavery set up “safe houses” she also informed that if a slave were to get lost, to look towards the sky and find the North Star.
A summary of Russia exists the war in history sparknotes World War I 1914-1919 the Russian death toll was enormous, Russia was continuously losing territory
C Northern Africa becomes a United country
It is recommended but it’s not a necessity
I think it’s b
Hope this helps