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