Well, your answer from the following is going to be
<span>"B Nomadic tribes traveled farther than ever before, spreading not only valuable goods but also their religion, Islam."
I hope this helps!!!!!!!!!!!!!!! Please mark me as Brainiest</span>
If we start to travel from the Mississippi River westwards to the Pacific Coast, than the starting point is a lowland, vast one, as we continue to go towards the west we will encounter high mountains, the Rocky Mountains more specifically, and the elevation will go up to 4,400 meters above sea level, than we will go down, elevation wise, to the high plateaus and will be on elevations between 1,000 and 2,000 meters, and after we go up again to almost 4,400 meters as we cross the Cascade Mountains. After the Cascades we go gradually downwards towards the lowlands, where we will first go a bit bellow sea level, and than little up in the lowlands along the Pacific Coast, and at the end reach a point of zero elevation.
I believe it was <span>Francisco de Xeres but I might be wrong..</span>
The codename given for that was operation dynamo
If you can provide a picture, I will reply to this comment with an answer.