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