The earliest civilizations in egypt were centered on this river.

a. euphrates
b. jordan
c. nile
d. tigris

Answer b.adi admin hope this

Answerdistinguish between the mercalli scale and the richter scale;

Aristotle thought so every portion of the earth tends toward the center until by compression and convergence they form a sphere. travelers going south see southern constellations rise higher above the horizon.~ hope this !