Browsing by Author "Malawalaarachchi,Ovini N"

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    Biotoxins: Invisible threat to mankind
    (Institute of Chemistry Ceylon, 2020-09) Perera,K. Sarath D; Malawalaarachchi,Ovini N
    Biotoxins or germ weapons are infectious (diseaseproducing) agents such as bacteria, viruses, rickettsiae, fungi, or other biological agents – that may be utilized as weapons against humans, animals, or plants. Biological toxins are living organisms or replicating entities, and a human infected with deadly virus or bacteria could pose a threat to humans
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    Water – The Life Saver
    (Institute of Chemistry Ceylon, 2020-09) Perera,K. Sarath D; Malawalaarachchi,Ovini N
    Water is a truly amazing resource on Earth that nature offers us absolutely free of charge, and it is ranked second only to oxygen as being essential for life. More than 70% of the Earth’s surface is covered with water. However, fresh water comprises only 2.5% of the total water content on Earth and the rest is too salty to use.