What events encouraged American westward expansion in the early nineteenth century?
A.
the Missouri Compromise and the Battle of the Alamo
B.
the creation of railway lines and the purchase of the Louisiana Territory
C.
the Erie Canal and the gold rush
D.
the War of 1812 and the Monroe Doctrine

ba geologist finds four sedimentary rock she determines that no geologic events have shifted the layers she labeles them a,b,c,dbfrom top to bottom

i believe george gallup used a poll in 1936

i wrote in correct journal format.

i wrote from the point of view of someone who is living in west berlin during the airlift.

i included details about what life was like in west berlin during the airlift.

i describe   what happened during the airlift.