Sources of food

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Across
  1. 5. green plants
  2. 7. animals that eat plants
  3. 8. Help to keep the surrounding clean
Down
  1. 1. the chemical substances in food
  2. 2. chain chain of events
  3. 3. animals that eat flesh
  4. 4. animal that eat both plants and flesh
  5. 6. small animals that depends on other living animals