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