Http://www.geologyin.com/2014/11/how-to-identify-minerals-in-10-steps.html
Answer:
I think <em><u>bar graph</u></em> is the appropriate way to present the data.
Answer:
The Minerals are the <u>chemical substances</u> found on the <u>earth's surface </u>which are <em>elements</em> or <em>compounds</em>.
I thinks it's true but I'm not sure
