How does UV disinfect water. UV light is a naturally occurring component of solar radiation. It falls in the region between visible light and X-Rays in the electromagnetic spectrum.Generally, UV light is considered as falling between the wavelengths 100nm â 400nm, however UV can be categorized even further into separate regions.V light damages the DNA in bacteria, viruses, moulds and some protozoa, leaving them unable to perform cellular functions and multiply. UV is particularly highly effective against Cryptosporidium and Giardia â organisms resistant to chlorine that are a major risk to human health.
Intro: Dulce de Leche. Dulce de leche is a delicious caramel-like candy made from milk and sugar that's popular in many South American countries. It's called confiture de lait in French, and ...
For the Latin lines by Horace, see Dulce et decorum est pro patria mori.  Dulce et Decorum est  is a poem written by Wilfred Owen during World War I, and published posthumously in 1920.The Latin title is taken from the Roman poet Horace and means it is sweet and honorable..., followed by pro patria mori, which means to die for one's country.or the Latin lines by Horace, see Dulce et decorum est pro patria mori.  Dulce et Decorum est  is a poem written by Wilfred Owen during World War I, and published posthumously in 1920.