The Oklahoma Panhandle has a different climate than the eastern portion of the state, primarily due to . a. differences in soil conditions b. differences in elevation c. differences in population density d. differences in animal ecosystems

It would be B, differences in elevation.

Explanation: Its the panhandle. So it's hotter there than it would be in other places of the state. There's mesas up there too like the Black Mesa, which is Oklahoma's highest point, standing at 4,973 feet. Plus its further to the North than it is the East which makes it more susceptible to fluctuations in temperature.

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast