Poverty is one of the main reasons for social problems but I believe that the worst social problem we have is social inequality, which is the main generator of problems. There is no formula for how to end wealth or social equality given that most people who are rich have no interest in sharing or helping people who have little or almost nothing.
Capitalism generates more and more inequalities, which leads to more poverty, because the rich get richer and the poor get poorer.
Substitutes, and also perhaps consumer tastes, account for this change in demand for ketchup and for salsa.
Trench warfare. To get under the machine gun fire they had to dig down. Trench foot was the most common ailment for soldiers. It stemmed from the wet conditions found in trenches. Soldiers feet would become wet and lead to sores and blisters. If not treated properly, gangrene could set in and lead for the need to amputate. The Battle of Verdun was one of the longest and longest battles between France and Germany.
The answer is B ) Vasco da Gama traveled to India.
