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Author Question: Why is the innermost Galilean moon Io made mostly of rock while the outermost Galilean moon, ... (Read 51 times)

maychende

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on: Jul 27, 2018
Why is the innermost Galilean moon Io made mostly of rock while the outermost Galilean moon, Callisto made of a mixture of ice and rock?
 
  A) Io formed close to Jupiter where the temperatures were too high for ices to form
  B) Callisto was captured as it wandered in from the Kuiper Belt
  C) Io once had ice on its surface which was vaporized away by volcanism
  D) Callisto experience many impact by icy comets which built up a layer of ice on its surface

Question 2

Electrons orbit an atomic nucleus like planets orbit the Sun.
 
  Indicate whether the statement is true or false


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jonathanballen97

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

A

Answer to Question 2

FALSE


maychende

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Reply 2 on: Jul 27, 2018
:D TYSM

aliotak

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Reply 3 on: Yesterday
Excellent

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