Memory time

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Across
  1. 4. the problem of the slow rise in temperature in the atmosphere
  2. 6. an animal or plant species in danger of extinction
  3. 7. changes in the earth’s weather
  4. 8. something that gets bigger
Down
  1. 1. to be a danger for something
  2. 2. period of dry weather
  3. 3. you make sure something doesn't happen
  4. 5. to use again