This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What are the four primary methods of separating ore minerals from nonvaluable minerals? What will be ... (Read 49 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
on: Jul 15, 2018
What are the four primary methods of separating ore minerals from nonvaluable minerals? What will be an ideal response?

Question 2

What is the primary advantage of hydraulic mining, and what are its drawbacks? 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

thall411

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 15, 2018
Answer to Question 1

They are flotation, gravity, magnetic and chemical methods.

Answer to Question 2

The advantage is that it is efficient. The drawbacks fall under the heading of destruction of the land.
Hydraulic mining increases downstream flooding, clogs irrigation systems, and ruins farmland. In
addition, there are negative impacts to the biosphere, such as mercury contamination from gold
extraction operations and destruction of spawning grounds for various fish species



cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
Reply #2 on: Jul 15, 2018
Correct answers!


thall411

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 15, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

The pattern of primary succession at Glacier Bay, Alaska. The pattern of primary succession at Glacier Bay, Alaska.
The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper
The Hepatic Portal Blood Supply The liver receives water, minerals, and nutrients from the digestive The Hepatic Portal Blood Supply The liver receives water, minerals, and nutrients from the digestive
Four methods of recording electrical activity of the nervous system. Four methods of recording electrical activity of the nervous system.
Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ... Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ...
One pathway of primary succession in Alaska’s Glacier Bay region. One pathway of primary succession in Alaska’s Glacier Bay region.
Video: X chromosome inactivation in calico cats

For a complete list of videos, visit our video library