Understanding an author's culture a reader?

By comparing part 1 and 2 of polar opposites what does it mean by polar opposites

The travels of marco polo. which sentence best reflects author’s subjective perspective on the people of japan?

Constructing an argument: in modern american society, the legalization of marijuana continues to be controversial and hotly debated. some people find it contradictory that certain "drugs"—such as tobacco and alcohol—are legalized even though they pose proven health risks, while marijuana, which has many medicinal applications, continues to be illegal by the federal government. what reasons do you think the federal government gives for outlawing marijuana, and do the reasons support the conclusion?