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