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