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