The first confirmed detections of extrasolar planets occurred in
a. 2009
b. the mid-20th century
c. the 1990s
d. the mid-17th century

According to the united nations refugee agency, more than 2/3 of the world's refugees come from just five countries. which country is not on that list? a) turkey b) myanmar c) afghanistan d) south sudan

Why did the united states lead a coalition to invade iraq in 1991? o a. there was a fundamentalist revolution in iraq. o b. iraq had invaded iran. o c. an oil embargo had started in the middle east, o d. iraq had invaded kuwait.

Which of the following is an example of relocation diffusion