The Nile River valley has the greatest concentration of population in Egypt because of it's: a. alpine climate
b. tourist attractions
c. extensive in-migration from nearby areas
d. many. sacred sites
e. high-quality agricultural land

While viewing a topographic map, you notice a region in which the contour lines are very close together. what can you conclude about this region? a. it has a high population. b. it has a steep incline. c. it's near a political boundary. d. it contains a body of water.