Which was a cause of the Iran hostage crisis in 1979?
the Camp David Accords
the Shah’s entry into the United States
the Soviet invasion of Afghanistan
Ayatollah Khomeini’s entry into the United States

Which of these would be most useful in studying the effect of germs exchanged between the new and old worlds? a. a graph showing the number of europeans between 1492 and 1600. b. a graph showing the number of native americans between 1492 and 1600. c. a primary source description of the symptoms of an unknown disease affecting native americans in 1492. o d. a primary source description of the symptoms of an unknown disease affecting europeans in 1492.