This topic contains a solution. Click here to go to the answer

Author Question: Water is naturally purified by A) evaporation and condensation. B) transpiration and ... (Read 34 times)

nummyann

  • Hero Member
  • *****
  • Posts: 576
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?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

enass

  • Sr. Member
  • ****
  • Posts: 380
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.




enass

  • Sr. Member
  • ****
  • Posts: 380

 

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

For a complete list of videos, visit our video library