What the difference between East African slavery and west African

The merchants obtained the slaves from African chiefs by giving them goods from Europe. At first, these slaves were often the captured soldiers from tribal wars. However, the demand for slaves become so great that raiding parties were organised to obtain young Africans.The majority of enslaved Africans went to Brazil, followed by the Caribbean. A significant number of enslaved Africans arrived in the American colonies by way of the Caribbean, where they were “seasoned” and mentored into slave life.

Explanation:

chlorofluorocarbons are released via: aerosol sprays and refrigerants.

the answer is "by providing data about careers and annual mean wages"