How many africans are believed to have been sold into slavery during the trans-atlantic slave trade?

Over 9,000,000

Explanation:

It is difficult to establish how many people were sold into slavery during the four centuries that the practice lasted. It is believed that about 1.2-2.4 million Africans died during their transport to America. However, about 12 million slaves were bought and transported. Moreover, many more people died in Africa during the capture or the long journey to sea.

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.