Author Question: Why did the era of nucleosynthesis end? A) Too many heavy elements were produced. B) Neutrinos ... (Read 99 times)

danielfitts88 · **on:** Jul 27, 2018

Why did the era of nucleosynthesis end?

A) Too many heavy elements were produced.
B) Neutrinos carried off too much energy.
C) The temperature of the universe became too low.
D) The density of the universe became too low.

Question 2

Most interstellar dust grains

A) were produced in the Big Bang.
B) are produced in the atmospheres of red giant stars.
C) are produced in supernova explosions.
D) are produced in the cores of low-mass stars
E) are produced in the interstellar medium.