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