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