Why did Carl Sagan say that we are star stuff?
A)The composition of most stars (mostly hydrogen and helium)is about the same as the composition of our bodies.
B)Cosmic rays reaching Earth from distant astronomical sources may be one source of mutations that help evolution along.
C)Nearly every atom from which we are made once (before the solar system formed)was inside of a star.
D)Nearly every atom from which we are made was once inside our star,the Sun.
E)Sagan thought that all of us have the potential to be movie (or TV)stars like he was.

Question

Quizplus · Accepted Answer

Carl Sagan said that we are star stuff because nearly every atom from which we are made once (before the formation of the solar system)was inside of a star. This is based on the fact that elements heavier than hydrogen and helium are formed only in stars or in supernova explosions, and these elements form the basic building blocks of life.

Why Did Carl Sagan Say That We Are Star Stuff