Population Pyramid Expansive - pyramid with a wide base (larger percentage of people in younger age groups, indicating high birth rates and high fertility rates) and narrow top (high death rate and lower life expectancies). It suggests a growing population.
It was once a body of water there, having the shell in the rock means that a sea creature lived there so there must have been water there at one time in history.
It should be A!
I hope all is well. (:
Sand sheets and dunes cover approximately 25 percent of the Sahara's surface.
Answer: Lack of natural minerals and adequate sea lanes
Explanation:
