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