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Author Question: Which statement about the stages of starbirth is FALSE? A) At stage 1, only the cloud exists. B) ... (Read 33 times)

V@ndy87

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on: Jul 27, 2018
Which statement about the stages of starbirth is FALSE?
 
  A) At stage 1, only the cloud exists.
  B) By stage 3, the star has formed a photosphere.
  C) Nuclear reactions begin in the core by stage 4.
  D) The T-Tauri wind is prevalent in stage 5.
  E) By stage 7, the star has reached the main sequence.

Question 2

About what percent of all asteroids are C-type asteroids?
 
  A) 5
  B) 10
  C) 15
  D) 50
  E) 75


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phuda

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

C

Answer to Question 2

B


V@ndy87

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Reply 2 on: Jul 27, 2018
Wow, this really help

Viet Thy

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Reply 3 on: Yesterday
:D TYSM

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