Our Environment

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Across
  1. 1. an organic compound that does not occur naturally
  2. 5. make or become smaller or fewer in size, etc
  3. 7. consisting of three atoms.
  4. 8. a biological community of interacting organisms
  5. 9. a small bag made of polythene
  6. 10. the concentration of toxins
Down
  1. 2. wavelength shorter than that of the violet end
  2. 3. a colourless, odourless flammable gas
  3. 4. organisms that can produce their own food
  4. 6. the destruction of something