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-Refer to the Figure Above (First Three Rows of the Periodic

Question 18

Multiple Choice

-Refer to the figure above (first three rows of the periodic table) . If life arose on a planet where carbon were absent, which element might fill the role of carbon? A) boron B) silicon C) nitrogen D) aluminum E) phosphorus
-Refer to the figure above (first three rows of the periodic table) . If life arose on a planet where carbon were absent, which element might fill the role of carbon?


A) boron
B) silicon
C) nitrogen
D) aluminum
E) phosphorus

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