Fossil fuels
Starter
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BURNING
CAPROCK
CHEMICAL
COAL
ENERGY
FOSSILS
FUEL
HEAT
HEAT
LIGHT
OIL
PETROL
REMAINS
SMOKE
| F | O | K | C | O | R | P | A | C |
| G | O | E | C | O | I | L | H | I |
| N | T | S | N | P | A | E | L | D |
| I | T | A | S | E | M | L | E | E |
| N | H | F | E | I | R | D | U | K |
| R | G | H | C | H | L | G | F | O |
| U | I | A | T | Y | T | S | Y | M |
| B | L | R | E | M | A | I | N | S |
| G | U | D | L | O | R | T | E | P |
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