crossword 1

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Across
  1. 7. A geometric progression written as a sum
  2. 8. One of four subclasses or superorders of Monocotyledones; comprises 17 families including: Liliaceae; Alliaceae; Amaryllidaceae; Iridaceae; Orchidaceae; Trilliaceae
  3. 10. The act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors
Down
  1. 1. A living (or once living) entity
  2. 2. Used as a term of address for those male persons engaged in the same movement
  3. 3. Giant tortoises
  4. 4. Any of various columnar epithelial cells in the central nervous system that develop into neuroglia
  5. 5. Put out of action (by illness)
  6. 6. Crew of workers who move scenery or handle properties in a theatrical production
  7. 9. The liturgical language of the Coptic Church used in Egypt and Ethiopia; written in the Greek alphabet