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