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Author Question: As a radioactive substance gradually decays, the abundance of daughter ____ gradually increases. ... (Read 140 times)

@Brianna17

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on: Jul 27, 2018
As a radioactive substance gradually decays, the abundance of daughter ____ gradually increases.
 
  a. atoms
 b. isotopes
 c. elements
  d. cells
 e. nuclei

Question 2

Vega is an A0 main sequence star. Based on this information, which statement is true?
 
  a. Vega has a surface temperature that is less than the Sun
 b. Vega has mass that is greater than the Sun
 c. Vega is less luminous than the Sun
 d. Vega has mass that is less than the Sun
 e. Vega is located near the lower right hand corner on the HR diagram


aliotak

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

b

Answer to Question 2

b


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@Brianna17

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Reply #2 on: Jul 27, 2018
Thanks


aliotak

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Reply #3 on: Jul 27, 2018
Welcome :)


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