The Cold Chemistry Experiment of Miller Showed Prebiotic Synthesis in Test

Multiple Choice

The cold chemistry experiment of Miller showed prebiotic synthesis in test tubes containing ammonia gas, water vapor, and cyanide (HCN) cooled to -78^oC.This is the temperature of the ice that covers Europa, one of Jupiter's moons.This result is most consistent with which statement?

A) Earth was at a temperature of -78^oC 3.5 billion years ago.
B) Life did not form on Earth until the formation of widespread glaciers.
C) There is a possible extraterrestrial origin of life on Earth.
D) Basic molecules of life cannot originate on a cold moon with water.
E) Life on Earth originated in ice-covered environments.