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