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Author Question: Water is naturally purified by A) evaporation and condensation. B) transpiration and ... (Read 127 times)

nummyann

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on: Jul 16, 2018
Water is naturally purified by
 
  A) evaporation and condensation.
  B) transpiration and evaporation.
  C) precipitation and infiltration.
  D) condensation and transpiration.

Question 2

How does fractional crystallization contribute to the formation of economically important metal ores?
 
  What will be an ideal response?


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enass

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Reply #1 on: Jul 16, 2018
Answer to Question 1

A

Answer to Question 2

Most economically important metal atoms do not fit easily into the silicate minerals that form most of the crystals in solidifying magma. As a result, fractional crystallization concentrates originally trace quantities of the metal atoms so that they have relatively high concentrations in the last remaining melt. At these high concentrations, the metal atoms typically join with sulfur atoms to make sulfide ore minerals.


nummyann

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Reply #2 on: Jul 16, 2018
TY


enass

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Reply #3 on: Jul 16, 2018
Happy to Help


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