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BIOFUEL
BIOMASS
COAL
ISOTOPES
KEROGEN
MAGMA
MELTDOWN
MINERAL
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RESOURCE
RESOURCES
| K | B | S | M | A | G | M | A | S |
| P | N | E | S | I | K | K | E | K |
| L | W | P | S | M | E | C | B | N |
| A | O | O | A | O | R | O | I | A |
| V | D | T | M | U | O | A | O | T |
| O | T | O | O | V | G | L | F | U |
| M | L | S | I | F | E | C | U | R |
| E | E | I | B | P | N | W | E | A |
| R | M | I | N | E | R | A | L | L |
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