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