Author Question: In brightness, Jupiter is second only to the planet ________ most of the time. A) Uranus B) Venus ... (Read 31 times)

TFauchery · **on:** Jul 27, 2018

In brightness, Jupiter is second only to the planet ________ most of the time.

A) Uranus B) Venus C) Saturn D) Jupiter E) Mars

Question 2

Why was deuterium so critical in the primordial nucleosynthesis?

What will be an ideal response?

trampas · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

B

Answer to Question 2

Formed at 900 million K, when protons and neutrons fused, it was the critical link to forming both He-3 and finally He-4 in the first few minutes of creation.