whoo is Louis Pasteur?. and what is penicillin .
Answers
Answer:
Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum (/haɪˈdrɑːrdʒərəm/ hy-DRAR-jər-əm).[4] A heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure; the only other element that is liquid under these conditions is the halogen bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.
Answer:
On the 28th September 1895 Louis Pasteur died. His germ theory changed completely the way people understood what germs were and how they worked. 33 years later on 28th September 1928 Alexander Fleming discovered penicillin, the first known antibiotic and the first stunningly effective defence – at least up until now!