Scientists believe that there are between ____ and ____ million species on Earth,and that between ____ and ____ percent of them are located in tropical forests.
A) 10 and 40,50 and 80
B) 10 and 30,50 and 90
C) 10 and 20,50 and 70
D) 10 and 50,50 and 60
Correct Answer:
Verified
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