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