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