Question

Why are all the Miller-Urey experiments essential to the theory of evolution?

Answer 1

The correct answer is option C, that is, they showed how organic molecules could be produced from Earth's early atmosphere.

The key point in the Miller-Urey experiments is that they demonstrated the synthesis of composite molecules, that is, amino acids and others through non-living precursor mechanisms. Thus, they tested the chemical origin of life under those environmental conditions.