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