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. Common cold is caused by which type of microbe? Bacteria Fungi Algae Virus 2. Which one of the following is not a method of food preservation? Pickling Salting Boiling Drying 3. How much nitrogen is present in the atmosphere? 88% 58% 78% 68% 4. Malaria is caused by which type of microbe? Protozoa Fungi Algae Bacteria 5. An infectious disease is _________ . spread from person to person spread from animal to animal caused only by bacteria caused only by viruses 6. __________ are the agents that act as carriers of a pathogen and spread diseases. Microbes DNA Vectors Parasites 7. Which human diseases are caused by protozoa? Hepatitis Malaria All of these Typhoid 8. The gas released during the preparation of bread is Oxygen Sulphur dioxide Nitrogen Carbon dioxide 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. Cholera spreads by taking insects bites. None of these AIDS spread by sharing towel clothes bed used by infected person. 10. Substance used to produce immunity against diseases in the living body is called immune antibody antigen vaccine Free Download WordPress ThemesDownload Premium WordPress Themes FreeDownload Premium WordPress Themes FreeDownload Premium WordPress Themes Freeudemy course download free download lenevo firmwareFree Download WordPress Themeslynda course free download
