Which of the four planes was hijacked first?

Flight 175
Flight 77
Flight 11
Flight 93

List three reasons why explorers began to explore new, and old areas. [[ps: doesn't explicitly say where. i think it's more in general.

Which letter correctly labels the mississippi river? a b c labeled map of the mississippi river and surrounding regions.

Imagine you are a historian studying a battlefield journal written by a soldier serving in world war i. describe the process of interpreting the information within the journal, as well as how you would determine whether the evidence in the journal is valid