Nature

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Across
  1. 3. is the introduction of harmful materials into the environment
  2. 4. long-term shiftsin temperatures and weather patterns
  3. 5. animals that are about to dle
  4. 7. living things under water
Down
  1. 1. something that living things nedd to live
  2. 2. converts sunlight into electrical energy
  3. 6. the capacity or power to do work