To start and keep a fire burning requires four elements: fuel, oxygen, an ignition source, and a chemical chain reaction. A few examples will illustrate why each of the four elements is. necessary. Hydrocarbon Safety: Understanding Flash Point. You are using a butane cigarette lighter.
Germ is non medical term of microorganism which includes parasite, amoeba, fungus, bacteria, richetchia, virus, and so many others. Bacteria is one of the germ. usually the germ causes disease, but some germ are good for us, so called friendly germ. 25 people found this useful.
The main difference between viruses and bacteria is that viruses are packets of genetic material and cannot survive on their own, while bacteria are single-celled organisms th â¦ at can.Bacteria take in nutrients, expel waste, grow, and reproduce (multiply).ne major difference between viruses and bacteria is the method of reproduction. Bacterium is a completely self-contained and self-reproducing unit. When the time is right, bacterium will split its DNA and RNA genetic material in two.