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