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