Environmental issues
Environmental issues
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CLIMATE
CONSERVATION
DEPLETION
ECOSYSTEMS
ENERGY
EXPLOIT
OZONE
POLLUTION
RENEWABLE
RESOURCES
WASTE
| E | K | R | R | E | S | O | U | R | C | E | S | W |
| N | N | K | W | L | H | A | G | N | S | F | C | X |
| V | G | O | Z | O | N | E | T | O | C | R | H | F |
| E | Y | Q | I | B | W | I | S | I | L | E | J | I |
| G | G | M | H | T | O | A | Z | T | S | R | N | P |
| I | R | T | I | L | A | A | M | E | S | L | O | R |
| K | E | T | P | R | G | V | J | L | S | A | I | E |
| Y | N | X | K | Y | H | G | R | P | S | O | T | T |
| W | E | C | O | S | Y | S | T | E | M | S | U | A |
| L | K | I | J | K | O | C | E | D | S | M | L | M |
| C | Q | I | K | O | J | A | L | D | Y | N | L | I |
| N | N | E | L | B | A | W | E | N | E | R | O | L |
| U | F | W | A | S | T | E | U | J | B | D | P | C |
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