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