Outbreaks of cold, dry air in the eastern United States during the winter are typically associated with what type of air mass?

Continental Polar Air Masses

Explanation:

Continental Polar Air Masses which are also known as Continental Arctic Masses originate from central and northern Canada as a result of cooling from radiation. They are known to be cold, dry and stable and are often marked by surface high pressure and cold temperatures.

answer; i believe the above is (false)

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail