Temperatures raise as the altitude increases. It also absorbs all the suns rays and energy making it warmer. <span />
Statement 1 is true I believe
To put it shortly, the answers are C, D, E, and F.
With C. being "Increased Immigration",
D. being "The desire for adventure/land/riches",
E. being "The Discovery of gold", and
F. being "The Homestead Act".
Hope this helps :)
I'd say it's A. Globalization has a long history of resulting in exploitation, such as sweatshops, colonization, slave labor, etc.
