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Author Question: We can see each other in the classroom right now because we A) emit thermal radiation. B) emit ... (Read 79 times)

imowrer

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on: Jul 27, 2018
We can see each other in the classroom right now because we
 
  A) emit thermal radiation.
  B) emit visible light.
  C) emit infrared light.
  D) reflect visible light.
  E) reflect infrared light.

Question 2

Of the normal elements around us, the Big Bang produced
 
  A) none, only energy.
  B) only hydrogen.
  C) hydrogen and helium.
  D) all elements up to iron.
  E) all elements in much their present proportions.


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cclemon1

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

D

Answer to Question 2

C


imowrer

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Reply 2 on: Jul 27, 2018
:D TYSM

strudel15

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Reply 3 on: Yesterday
Excellent

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