During the 19th century, the powerful nations of Europe "carved up" Africa into colonies and territories. Before colonization, how were the borders in Africa established? A:Borders were maintained by military leaders who worked to separate religious groups.
B:Borders generally did not exist before the colonization of Africa.
C:Borders were determined by allegiance to a central leader or a community.
D:Borders were formed by rivers, mountains and other geographic features.

danielu suge pula

explanation:

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else