Question: What are the two most mined materials?, Answer:Yes, Description of Mining: The extraction of valuable minerals or other geological materials from the earth, Fact1: Coal is the most mined material as it a source of energy for most of the world, Fact2: Iron is the second most mined material., Fact3: Iron is mined for its structural or strength uses
Step1: What minerals are mined?, Step2: Which of #1 are the mined most often?, Step3: First of #2, Step4: Second of #2, Step5: #3, #4, not_definitive_answer: False, incorrect_answer: True