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