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