Jeopardy! Round, Double Jeopardy! Round, or Tiebreaker Round clues (18 results returned)
| #6283, aired 2012-01-04 | OLD KING COAL $200: This European adventurer reported that coal was widely used in the 13th century Far East Marco Polo |
| #6283, aired 2012-01-04 | OLD KING COAL $400: Coal mining was made safer by the 19th c. invention of the safety this, which wouldn't ignite methane a lantern (or lamp) |
| #6283, aired 2012-01-04 | OLD KING COAL $600: In the 13th century a duty of one farthing was assessed on coal unloaded at Billingsgate in this city London |
| #6283, aired 2012-01-04 | OLD KING COAL $800: Britannica says coal "was the basic energy source that fueled the" this "of the 18th and 19th centuries" the Industrial Revolution |
| #6283, aired 2012-01-04 | OLD KING COAL $1000: In the 1300s the Southwest Indian tribes named for these dwellings used coal in pottery making pueblos |
| #5605, aired 2009-01-09 | COAL $400: These Old World finches of the genus Serinus were used in coal mines to detect deadly gas canaries |
| #5605, aired 2009-01-09 | COAL $800: Environmentalists are critical of this method of mining that only removes coal found near the surface strip mining |
| #5605, aired 2009-01-09 | COAL $1200: To get a feel for the miner's life, you can visit the "Big Pit" Coal Mining Museum at Blaenavon in this U.K. country Wales |
| #5605, aired 2009-01-09 | COAL $1600: The most abundant & most widely used type of coal, it's also called "soft coal" bituminous |
| #5605, aired 2009-01-09 | COAL $2000: It sounds like an ancient Roman diviner, but miners use this tool to bore into a coal deposit an auger |
| #5049, aired 2006-07-20 | COAL RIDGE $400: Coal dust is very explosive, so mines are sprayed with "dust" from this common calcium-rich sedimentary rock limestone |
| #5049, aired 2006-07-20 | COAL RIDGE $800: The "hard" glossy black coal that's mined with the highest fixed carbon content is this type anthracite |
| #5049, aired 2006-07-20 | COAL RIDGE $1200: It's the condition also known as anthracosis, associated with coal miners black lung |
| #1749, aired 1992-03-19 | COAL $200: In 1804 this pair made the first report of a coal discovery west of the Mississippi Lewis & Clark |
| #1749, aired 1992-03-19 | COAL $400: It's the most abundant & most widely used type of coal bituminous |
| #1749, aired 1992-03-19 | COAL $600: The black, sticky liquid produced when coal is heated without air present coal tar |
| #1749, aired 1992-03-19 | COAL $800: The vegetation from this geological period of 345 to 280 million B.C. is the main source of coal the Carboniferous |
| #1749, aired 1992-03-19 | COAL $1000: John L. Lewis worked his way up from the coal mines to be elected president of this union in 1920 the United Mine Workers |
Final Jeopardy! Round clues (0 results returned)
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