Why are elements with even numbers of protons more abundant, on ...

[P68T]

Why are elements with even numbers of protons more abundant, on average, than elements with odd numbers of protons?
 
  A) because when elements split in a fission reaction, they prefer to split with all the protons paired
  B) because elements are mainly made in fusion reactions with hydrogen nuclei
  C) because elements are mainly made in fusion reactions with helium nuclei
  D) There's no explanation; it's something of a mystery to be explained or it may be a coincidence.

Question 2

Why is the night sky dark?
 
  A) Dark matter obscures light from distant objects.
  B) The dust clouds in interstellar space block the light.
  C) The universe has a physical edge, beyond which there is nothing.
  D) The universe is finite in age.

[cswans24]

Answer to Question 1

C

Answer to Question 2

D

[P68T]

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