Scarcity refers to the condition of insufficiency where the human beings are incapable to full fill their wants in sufficient manner. In other words, it is a situation of fewer resources in comparison to unlimited human wants. Human wants are unlimited. we may satisfy some of our wants but soon new wants arise. It is impossible to produce goods and services so as to satisfy all wants of people. Thus scarcity explains the relationship between limited resources and unlimited wants and the problem there in.
Women were granted the right to vote in 1919 because women and some men protested violently forcing the government to allow women the right to vote. Hope this helps :)
Both relied heavily on sailing, as in both areas waterways were very prevalent (Greece with Ionian Sea which can be compared to the rivers)