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