Double-spaced, typed. New Times Roman font.APA 6 citation format.Done in MS-WORD and submitted under the ‘Assignments’ tab with the following titling format: First Initial Last Name_Paper Title (for example: JDoe_MicrobiologyofPets)At least 3 sources, including a peer reviewed article or governmental publication, must be usedYou will choose from 1 of the following subject matters and write a paper that defines or explains the subject, gives a brief history, tells the ramifications or importance of it today and looks to the future development of the subject. 1. Atmospheric dust and microbes impact on health2. Lung microbes and impact on Covid-19 patients3. Explain the role of RNA polymerase and Covid-19 mutations4. Previous Pandemic or Plague-include comparison-contrasts to Covid-19 but the paper should focus on the historic disease more.