Which of these is NOT a reason carbon is thought to be the element on which complex extraterrestrial life is based?
A) Carbon forms chemical bonds that are both strong and flexible.
B) Every life-form on Earth is carbon-based, over an immense range of conditions.
C) Carbon releases a significant amount of energy when it combines with hydrogen.
D) Carbon provides a basis for forming long, complex chains of molecules.
Correct Answer:
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