Which geographical phenomenon is depicted in this image?
(A)eutrophication of coastal waters
(B) the Gulf Stream
(C) the trade winds
(D) a tropical cyclone
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統計: A(4), B(7), C(2), D(2), E(0) #2136983
統計: A(4), B(7), C(2), D(2), E(0) #2136983