Multiple Choice
Agricultural productivity in the Midwest increased in the late 1830s partly because of
A) the influence of steam power on farming.
B) John Deere's steel plow.
C) the invention of threshers.
D) the numbers of freed slaves eager for wage-earning work.
Correct Answer:

Verified
Correct Answer:
Verified
Q15: Texans gained their independence from Mexico in
Q16: Which general made a successful amphibious landing
Q17: Free-labor ideology fit the experience of some
Q18: When women began to break out of
Q19: Between 1840 and 1850,the United States gained
Q21: Why did Congress initially refuse to annex
Q22: Why did American manufacturers,unlike their European counterparts,invent
Q23: Mexico opened itself up to a future
Q24: Three-fourths of the almost 4.5 million immigrants
Q25: In 1855,African American leaders saw their most