Large molecules found in meteorites and interstellar clouds is evidence that:
A)life is abundant in the galaxy.
B)life has definitely formed in other places than Earth.
C)chemical evolution has taken place elsewhere in the Universe.
D)organic molecules are extremely rare.
E)life originated on Mars before Earth.

Question

Quizplus · Accepted Answer

The fact that large molecules such as amino acids have been found in meteorites and interstellar clouds suggests that chemical evolution has taken place elsewhere in the Universe, not necessarily that life has already formed. These molecules could be building blocks for life, but they could also simply be the result of non-biological chemical processes. The presence of large molecules in meteorites and interstellar clouds shows that chemical evolution, the process by which organic molecules are formed from simpler inorganic compounds, has occurred in other parts of the Universe. This does not necessarily mean that life has definitely formed in other places than Earth or that life is abundant in the galaxy, but it does suggest that the building blocks of life can be formed in other environments.

Large Molecules Found in Meteorites and Interstellar Clouds Is Evidence