Northern china built the great wall to protect itself from the invasions of the (touman, xiongnu, saka, scythian.) nomads?

What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

What impact did entry into ww1 have on life in the us?

Three broad zones with different climates and resources shape russian life. they include: