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