Where is the population in africa least dense?

1) along the nile river
2) on the islands
3) in the deserts
4) along the coasts

3) In the deserts

Explanation:

In African countries like that of the Botswana are the least dense like in the Sub-Saharan Africa with a population of 2.1 million people with the country being arid. And has a population of about 9.6 persons per square mile and similarity the countries like that of the Mongolia and the Namibia all formed near the desertic conditions.

Humid continental climate is found in the interior of continents between the 30 and 60 degrees latitude, but usually above the 40 degree line.   40 degrees north of the equator means less direct sunlight and therefore less warmth.   this climate is mainly found in the northern hemisphere since there are no major landmasses in the southern hemisphere.  if you live in northern indiana, you know all about humid continental because that is the climate type you have!