Dr. Jonas Salk developed a vaccine for typhoid fever.

a. true
b. false


Ans: b. false

History

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European views of the 2003 invasion of Iraq were __________.

A. heavily divided B. generally supportive C. universally opposed D. neutral

History

After the collapse of Teotihuacáno civilization,

a. it was entirely forgotten by the people of Central America. b. people in Central America attempted to imitate it. c. the Maya replaced it as the premier power. d. the king Chak Tok began to restore order.

History

Evidence that there was no conspiracy surrounding Pearl Harbor:

What will be an ideal response?

History

Which one of the following basic underpinnings of the American economy was NOT fragile in 1929?

A) banking B) manufacturing C) farming D) fiscal policy

History