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