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