First of all u need to define what' is Modes of production??
Def~Is an articulated combination of productive force and relation of production!!
OR
Means that its how people relate to the physical world and the way people relate to each other socially are bound up together in specific and necessary ways,,people must consume to survive but to consume they must produce and in producing they necessarilly inter into relations which exist indepently of their will!!
Also u need to know the Characteristics of modes of production,,whereby u will see the slavery mode of production which is characterized by the classes of HAVE and HAVEN'T !!
U nEed to define what's is slavery mode of production??
Def~is among of modes of production which were based on buying and selling of human being as commodities,,,,,just simple like that!!
The following are the Reasons which led to the existance of Slavery Modes of Production In Africa
Answer~{1} Opening of Plantation and mining
{2} Development of Maritine Technology eg water transportation,,discoverry of ships and compas direction
{3} Labour crises eg maulicious..latin america and lad indies
{4} To control gold trade from west Africa,, which up to now was under the control of the MUSLIMS
Also by convincing your teacher that u knows verry well U can add this on your conclussion!!....
Conclussion.....u can say that who benefits from the existance of slavery modes of production in Africa??
Answer~ Europeans and Americans
How??
Answer~ {1} Growth of towns eg Riverpool,,Manchester city
{2} Development of infrastructure eg roads,,railways
{3} Financial institutions such as Banks
{4} Industial revolution
I just tried
Hopeful u get a clear picture now
Anyone may add more on this
Thanks
Teen Leila