Need answer and explanation please.

What religion influenced the first persian empire as established by cuyrus the great?

Describe the geography of the nile valley . how did this geography affect civilizations that emerged in the nile valley

The truman doctrine created what? a pot holes in i-25 b lack of concern for space missions c a new technology that would erase german radio waves. d the worldview that the u.s. is just and good and that the u.s.s.r. is tyrants and mad men. answer