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