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Author Question: A typical space telescope is operated by how many astronauts? A) 7 B) 5 C) 3 D) 1 E) ... (Read 42 times)

cdr_15

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on: Jul 27, 2018
A typical space telescope is operated by how many astronauts?
 
  A) 7
  B) 5
  C) 3
  D) 1
  E) 0

Question 2

Contrast the chemical composition of interstellar gas with that of interstellar dust.
 
  What will be an ideal response?


nanny

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Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

Gas is almost all hydrogen and helium, but the dust is clumps of heavier elements, condensed out as grains much like the material of the Earth.


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