Which of the following statements about mountain ranges in the united states and canada is false?
a.
the piedmont region is the fall line between the appalachian mountains and the east coast of the us.
b.
the sierra nevada mountains and the cascades both follow the pacific coast.
c.
the rocky mountains are east of the appalachian mountains.
d.
the highest peaks in the rocky mountains are over 14,000 feet high.

You're doing research for a public essay on alternative medicine. which of the following sources has the most reliable information? a. a post on a social networking site about the undesired side-effects of different alternative medicinesb. a recent government report comparing the results of alternative and contemporary medicine for a specified diseasec. an anonymous article on a medical website that claims the success of alternative medicined. a 2003 study conducted by a medical research center about the effects of alternative medicine