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