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.
While bacterial and viral infections often share the same symptoms, they are two very different types of pathogens. A bacterium is a single-celled organism that which causes illness when ingested. Unlike viruses, bacteria can grow on the food they contaminate. Most foodborne illnesses come from bacteria.