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