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AGRICULTURAL
ANIMALS
CLOSEDSYSTEM
EARTH
ENVIRONMENT
FARMING
FOSSILFUEL
GLOBAL
HUNTERGATHERER
INDUSTRIAL
LOCAL
MACHINERIES
PLANTS
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REVOLUTION
TECHNOLOGY
| M | Z | U | H | K | I | S | M | A | C | H | I | N | E | R | I | E | S | K | C |
| E | F | H | Z | I | D | S | E | C | R | C | U | N | T | F | R | Z | N | E | F |
| L | O | P | Y | N | U | T | T | E | C | H | N | O | L | O | G | Y | L | H | A |
| Z | S | U | H | D | U | W | S | O | J | U | R | L | D | G | Z | A | E | S | R |
| I | S | Z | S | U | M | D | Y | G | L | C | G | A | E | S | R | S | B | U | M |
| C | I | Y | W | S | N | Z | S | Y | A | E | U | C | P | U | L | J | L | P | I |
| R | L | G | E | T | Q | T | D | Z | B | A | E | O | T | A | G | I | S | A | N |
| U | F | Q | C | R | S | M | E | N | O | D | P | L | M | L | T | Y | K | Z | G |
| C | U | W | B | I | G | U | S | R | L | I | U | I | X | A | V | J | K | S | R |
| Q | E | Z | N | A | D | G | O | P | G | C | N | X | H | N | F | K | N | G | E |
| D | L | R | A | L | M | R | L | T | I | A | R | P | Q | O | N | T | R | Z | Y |
| S | S | A | I | B | W | A | C | R | R | C | T | L | Y | I | W | M | L | V | T |
| H | O | M | S | N | N | W | G | H | C | X | N | H | A | G | H | K | B | S | U |
| X | N | A | K | T | B | A | Y | A | H | T | R | A | E | E | X | T | P | R | W |
| P | B | L | S | W | N | O | I | T | U | L | O | V | E | R | K | X | X | V | G |
| F | T | K | K | I | T | N | E | M | N | O | R | I | V | N | E | X | D | R | F |
| U | B | I | H | Y | O | H | W | J | A | L | W | P | Z | E | S | R | G | A | C |
| X | S | Q | O | R | D | R | R | B | Q | U | F | K | U | K | Z | D | D | R | C |
| W | X | M | Y | Y | U | J | O | L | M | J | F | U | M | G | T | R | A | E | J |
| P | Q | Y | K | Y | W | J | D | C | D | M | E | J | V | J | W | O | Y | Z | O |
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