Why do Graff and Anderson question Ender watching old propaganda videos

What is one way that the author makes a distinction between the first transcontinental railroad and the first transcontinental passenger flights in 1936

Can someone me look back at "the chrysanthemums" and write down at least two specific moments where the ranch or garden setting you understand something about elisa, and then at least two specific moments where the road setting does the same. write a few sentences to describe what's happening in each moment and how the interplay of character and setting us understand this person.

The travels of marco polo. based on the text and the map, which labeled location sends products to shihr?