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