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