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