In 1274 and 1281, the Mongols attempted to conquer Japan, but, in both cases, the invasions were unsuccessful because of massive typhoons. These severe weather events destroyed most of the invading ships or forced them to return home. What is the relationship between the two sentences in this excerpt?

The relationship between the two sentences in the excerpt is that the second sentece is explaining the reason why the events of the first sentece ocurred.

In the first sentence, a fact is introduced: the Mongols tried to invade Japan twice, but typhoons impeded them from doing so both times. The second sentence clarifies why: the severe weather produced by the typhoons destroyed most of the Mongol fleet, which forced them to retreat.

the book's theme is the moral ambiguity of the iranian revolution, history of middle eastern relations and the process of growing up during war. it sheds light on the stereotypical views of middle eastern culture and religion.

the author explicitly portrays the issues of class disparities and racism continously throught the whole novel.

the relationship between parents and childrens, the abandonment of faith, modernity vs fundamentalism and class conflict are the 4 main panels that this novel englobes.

hope this , if you would like me to be more specific about a specific excerpt let me know : )