What challenges will walmart face in africa?

In Africa, Wal-mart faces challenges of opposition from communities and governments, as a US company, selling US products to countries with an anti-US sentiment would be difficult; poverty of consumers, to make effective business monopoly the marketing would need to attract poorer citizens, who may be socially disadvantaged with less wealth and education (reading and writing); demand, to create the product demand they will have to attract a certain niche to their stores. 

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.