Explanation:
The Phanerozoic eon is separated into three eras: the Paleozoic, Mesozoic, and Cenozoic eras
C) 30 miles is the correct answer
(I’m not sure but I think so)
All and each of those landmarks are and is located in modern Egypt.
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term. Hope this answered your question
True the demography is the scientific study of population characteristics
