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