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