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