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