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