World Environment Day - crossword puzzle

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Across
  1. 2. The largest land biome in the world
  2. 7. a major grass specie that can be seen in wet grasslands in Sri Lanka.
  3. 9. The only organism on the planet with cell walls composed of transparent, opaline silica.
  4. 10. The living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis
  5. 15. softwood has been cut from trees of this phylum
  6. 18. a name given for nutrient enrichment
  7. 19. A structure that allows Bacillariophyta / Chrysophyta cells to move over surfaces. This system is composed of one or two slits, or fissures that penetrate the valve of some bacillariophyta
  8. 20. What stands for the sustainable societies, clean air, healthy food, toxin-free natural and built environments?
  9. 24. a worldwide hands-on, science and education program which is focusing on the environment & now active in over 120 countries worldwide
  10. 25. what red data book category does Lutra lutra belong to?
  11. 26. an animal which has a habitat in the tropical mountain forests in Sri Lanka
  12. 27. A brown deposit, resembling soil formed by the partial decomposition of vegetable matter in the wet acidic conditions of bogs and fens, and often cut out and dried for use as fuel and in gardening
  13. 28. a small plant (about 1cm tall) that belongs to phylum pterophyta. Used as an ornamental plant
  14. 29. panthera pardus kotiya has been listed in IUCN red data book, as an Endangedred (EN) species in Sri Lanka. The common usage name of this species is,..........
Down
  1. 1. a perforated plate by which the entry of seawater into the vascular system of an echinoderm is controlled.
  2. 3. an example of zygomycetes, found in soil, digestive systems, some cheeses like Tomme de Savoie, decaying fruits and vegetables.
  3. 4. an industrially synthesized compound, which is the main cause of ozone depletion. They have been released into the atmosphere, in various applications such as air-conditioning, refrigerators, and propellants in aerosol cans
  4. 5. Name the convention on the control of the transboundary movement of hazardous waste and their disposal.
  5. 6. A scientifically classified group or entity. Any group or rank in a biological classification into which related organisms are classified. A German zoologist, Ernst Haeckel proposed this name.
  6. 8. A province of Sri Lanka which Sinharaja rain forest is located.
  7. 11. the convention that established to limit greenhouse gas emission
  8. 12. the mostly solid bulk of the earth's interior. It lies between the earth's dense, super-heated core and its thin outer layer, the crust
  9. 13. a plant that contains a complex salt filtration system and complex root system to cope with saltwater immersion and wave action.
  10. 14. the theory states that life on earth originated from microorganisms present in outer space.
  11. 15. name another word for “shrub biome”.
  12. 16. a step that we can get to reduce plastic waste
  13. 17. one of the extinct animal species according to the IUCN Red NoteBook
  14. 21. one of the invasive plant found in Sri Lanka
  15. 22. a bioluminescent organism
  16. 23. an abundant, multivalent, and nonmetallic chemical element. Fuels contained this chemical element, cause the emission of gas, which dissolves in droplets of rainwater.