Multiple Choice
Why might we think that silicon would be an obvious alternative to carbon as a building block for biological molecules?
A) it forms the basis of some life forms on Earth
B) it has a similar abundance on Earth to carbon
C) it forms complex molecules like carbon
D) it has a similar electronic structure to carbon, forming a maximum of four bonds and, hence, should have a similar chemistry
Correct Answer:

Verified
Correct Answer:
Verified
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