A. the amazon basin
B. the north-east of U.S.A
C. the Niger valley
D. North Africa
Correct Answer: Option B
B. the north-east of U.S.A
A. the amazon basin
B. the north-east of U.S.A
C. the Niger valley
D. North Africa
Correct Answer: Option B
B. the north-east of U.S.A
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