Land use
Energy
Advertisements
Login to be the first to rate this puzzle!
BIOFUEL
BIOMASS
ISOTOPES
KEROGEN
MAGMA
MELTDOWN
MINERAL
NATURAL
REMOVAL
RESOURCE
RESOURCES
| R | E | S | O | U | R | C | E | H |
| M | E | L | T | D | O | W | N | T |
| I | I | S | O | T | O | P | E | S |
| N | B | I | O | M | A | S | S | L |
| E | O | L | E | U | F | O | I | B |
| R | N | A | T | U | R | A | L | F |
| A | A | M | G | A | M | C | S | G |
| L | N | N | E | G | O | R | E | K |
| L | A | V | O | M | E | R | G | S |
Advertisements
