Author Question: Why didn't elements heavier than helium form in the first minutes of creation? A) When He-4 was ... (Read 91 times)

tfester · **on:** Jul 27, 2018

Why didn't elements heavier than helium form in the first minutes of creation?

A) When He-4 was formed, the expansion cooled the cosmos below 100 million K.
B) The first generation of stars used them up too quickly to observe them.
C) The electrons slowed down enough to be captured into orbits by protons.
D) There was not enough matter in the universe at that time.
E) Only Type I supernovae can produce iron and heavier elements.

Question 2

Galileo's early telescopes revealed the four large moons of Jupiter, the rings of Saturn, and its large moon Titan.

Indicate whether the statement is true or false