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