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From 1930 to 1939 fire ants spread inland about 60 miles from their point of introduction in Mobile, Alabama. What was the cause of their spread over this distance?

A) a natural spread
B) airplanes being transported
C) along with soil being transported
D) along with plants dispersion via ship ballast

1 Answer

4 votes
it is A) a natural spread





(extrawords so i can post this answer)
User Sarah Mei
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