Home Science Class 8- Chapter 2- Microorganisms: Friend and Foe – Quiz 6 Science Class 8- Chapter 2- Microorganisms: Friend and Foe – Quiz 6 10 Questions, each question is of 1 mark. No negative marking. Full Marks=10. 1. Substance used to produce immunity against diseases in the living body is called immune antibody vaccine antigen 2. Which human diseases are caused by protozoa? Hepatitis Malaria Typhoid All of these 3. How much nitrogen is present in the atmosphere? 88% 68% 58% 78% 4. The gas released during the preparation of bread is Oxygen Carbon dioxide Nitrogen Sulphur dioxide 5. Common cold is caused by which type of microbe? Fungi Algae Virus Bacteria 6. Which one of the following is not a method of food preservation? Boiling Drying Pickling Salting 7. Malaria is caused by which type of microbe? Protozoa Fungi Bacteria Algae 8. An infectious disease is _________ . spread from person to person caused only by viruses caused only by bacteria spread from animal to animal 9. Choose the way which are not responsible for the spread of communicable disease Common cold disease spread by taking ice cream, cold drinks and playing in the sun. AIDS spread by sharing towel clothes bed used by infected person. Cholera spreads by taking insects bites. None of these 10. __________ are the agents that act as carriers of a pathogen and spread diseases. Microbes Vectors Parasites DNA Download Premium WordPress Themes FreeDownload Best WordPress Themes Free DownloadDownload WordPress ThemesDownload Best WordPress Themes Free Downloaddownload udemy paid course for freedownload xiomi firmwarePremium WordPress Themes Downloadfree online course
