The first part of the question gives you the clue of approaching this question. Just start with defining resource curse and highlight its features.
Then move to second part of the question which is asking the case of Africa wrt resource curse in the fields of geopolitics and economy.
Discuss how the fight to control these resources have led to disputes, groupings, border claims, separatist ideas, civil wars and foreign interference etc. In the economy part, show how resource curse has affected the growth of nations as well as African continent overall, how the economy has been ruined and it has affected the polity of the region.