Fire ants first arrived in the United States in 1918, probably on a ship traveling from South America to Alabama. The maps below show the geographic location of the U.S. fire ant population in 1953 and 2001.
9.
By 2010, fire ants are MOST likely to
A. have spread to a larger area.
B. have reached their carrying capacity.
C. die out.
D. return to South America.
