I think you mean nullification. It was the idea that individual states could nullify federal laws if they felt like it.
Surface currents in the ocean are driven by global wind systems that are fueled by energy from the sun. Patterns of surface currents are determined by wind direction, Coriolis forces from the Earth's rotation, and the position of landforms that interact with the currents.
Everyman is both a morality play and an allegory.
It is a morality play because it teaches a lesson about life and the best way to live.
It is an allegory because each character represents an abstract idea. For example, "Goods" literally represents material things -- therefore it is not surprising that material goods are no help to Everyman on his journey.
