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. 

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust. 

Did you know it's illegal to own only one guinea pig in switzerland?   : )