Extraction of metals

• What is an ore?

  A rock that contains enough metal atoms to make extracting them commercially viable.
• What does commercially viable mean?

  Profitable
• Name the 2 techniques used to extract copper from low grade ores

  Phytomining and Bioleaching
• What does Phytomining mean?

  Burning plants to extract copper compounds from its roots.
• What does Bioleaching mean?

  Extracting copper compounds from leachate solution found in bacteria.