Africa environment

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Across
  1. 4. activities/resources that can be used without long-term harm
  2. 5. country; sparsely populated
  3. 7. dishonest or fraudulent conduct by those in power; bribery
  4. 8. laws or rules
  5. 9. petroleum; energy source that scientists link to climate change
Down
  1. 1. shortage of food
  2. 2. city; densely populated
  3. 3. when land turns to desert
  4. 6. shortage of water