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