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