Fossil Fuels
Introducing energy resources
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BUTANE
CHEMICAL
COAL
DIESEL
ENERGY
FOSSIL
FUEL
GAS
KEROSENE
LIQUID
ORGANIC
PARAFFIN
PEAT
PETROL
PETROLEUM
PROPANE
RENEWABLE
RESOURCE
| S | E | J | J | E | N | A | T | U | B | V |
| A | R | P | A | R | A | F | F | I | N | X |
| C | H | E | M | I | C | A | L | D | G | N |
| O | W | T | N | F | O | S | S | I | L | R |
| R | D | R | K | E | R | O | S | E | N | E |
| G | I | O | O | N | W | R | A | S | I | S |
| A | U | L | C | A | Q | A | G | E | W | O |
| N | Q | E | O | P | K | L | B | L | X | U |
| I | I | U | A | O | G | P | J | L | J | R |
| C | L | M | L | R | F | U | E | L | E | C |
| S | T | A | E | P | Y | G | R | E | N | E |
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