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