Please help! I'll give brainliest if you give a good answer. In one or two paragraphs, describe two ongoing challenges in western Africa that result at least partly from its history and relations with European powers. Do you think the region can overcome these challenges? Why or why not?

The symbols found on the map below indicate where fossils have been found in the same layer of sediment. each unique symbol represents fossil locations of a particular species.

Which best describes california population when it became a state in 1850? a.because of the gold rush attracting settlers all over the world california population diverse.bcalifornia had banned foreign immigrants at the start of the gold rush.so,the states population was made up of entirely of americans from other parts of the country.c california had a large african population because many southern planters had moved their enslaved africans to start large farms.d the indian removal act had led to the relocation of thousands of eastern native americans to california.as,a result the majority of californias population was native american

Which environmental change allowed people to travel by land between asia and north america a.human apaption to arctic environments b.the introduction to horses to north america c.the formation of ice sheets on land d.a rise in ocean temperatures