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12. Mumps is a viral infection that primarily affects saliva-producing(salivary) glands that are located near the ears.

13.Coliform Bacteria are commonly known as indicator of water pollution.

14. The green house gases are:
Carbon dioxide
Water vapour
Methane
Ozone
Nitrous oxide
Chlorofluorocarbons (CFCs)

15. CARULITE 20 granular catalyst converts ozone into oxygen .

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