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