2. Why does the author of "The Difficult Road to Mars" include so many facts about the surface of Mars? These sensory details are there to help readers imagine they have landed on Mars.
He expects that few readers will know what Mars looks like.
His main goal is to help readers imagine how Mars looked to ancient astronomers.
Most of the theories he describes are based on characteristics of Mars's surface.

you really need to put more information in your (question); /// i believe you are talking about ///creek traveler"s rest, about lewis and clark not good

richard milhous nixon (january 9, 1913 – april 22, 1994) was the 37th president of the united states, serving from 1969 to 1974, when he became the only president to resign (quit). he is also known for corruption and the watergate scandal which resulted in the public losing trust in him and his resignation.

i think it’s a i hope that right : )

the roman empire began to fall