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