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