Because the Moon has a low average density and no magnetic field, ...

[asan beg]

Because the Moon has a low average density and no magnetic field, then its dense core must be _______________.
 
  Fill in the blank(s) with correct word

Question 2

Supernovae are ____.
 
  a. very common: there are thousands of detectable events occurring in our galaxy each year
  b. common: a few dozen are detected in our galaxy each year
 c. uncommon: there are only one or two detected in our galaxy each year
 d. rare: only one or two occur each century in our galaxy
 e. extremely rare: only one or two are detected in the Universe each decade

[zoeyesther]

Answer to Question 1

small

Answer to Question 2

d

[asan beg]

Excellent

[chereeb]

Gracias!