Why did germany declare war on russia on august 1, 1914?
a) russia moved troops close to the german border.
b) russia had declared war on germany two days earlier.
c) germany wanted to provoke a war with russia’s ally great britain.
d) germany feared that russia would begin blockading germany’s ports.

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.