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