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