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