Most of them came from central africa and west africa.
Answer:
The ions of the solar wind collide with atoms of oxygen and nitrogen from the Earth's atmosphere in the ionosphere. The energy emitted during these collisions creates an aurora, which is a colorful glowing halo around the poles. When the solar wind is the strongest, the auroras are the most active.
Explanation:
High Income ($11,500 or more)
Answer:
The availability of natural resources can have a direct influence on the geographic distribution of the population. This is so because, generally, people or human groups tend to settle near sources of natural resources that allow them a subsistence, through the direct exploitation of the resource or through the economic exploitation of the same. Thus, for example, large cities tend to be located in the vicinity of rivers, lakes and seas that allow them to access the water necessary for soil irrigation as well as access routes to trade. Other cities have been created around specific resource centers, such as gold, oil or other minerals, initially being settlements destined for their exploitation.
Answer:
I have no clue
Explanation:
I don't know why but yeah because of the layers it got it may be the reason but I don't know these
