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

Question

Quizplus · Accepted Answer

Chemical evolution refers to the formation and changes of chemical compounds over time, leading to the complexity necessary for life. The discovery of large molecules in meteorites and interstellar clouds indicates that the basic chemical building blocks needed for life, such as organic molecules, can form in various places in the universe, suggesting that chemical evolution is not unique to Earth. This does not directly imply life exists elsewhere, only that the chemical precursors to life are more widespread.

Large Molecules Found in Meteorites and Interstellar Clouds Are Evidence