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. __________ are the agents that act as carriers of a pathogen and spread diseases. Microbes DNA Vectors Parasites 2. An infectious disease is _________ . spread from animal to animal spread from person to person caused only by viruses caused only by bacteria 3. Which human diseases are caused by protozoa? Hepatitis Malaria All of these Typhoid 4. How much nitrogen is present in the atmosphere? 58% 78% 88% 68% 5. Choose the way which are not responsible for the spread of communicable disease AIDS spread by sharing towel clothes bed used by infected person. Common cold disease spread by taking ice cream, cold drinks and playing in the sun. None of these Cholera spreads by taking insects bites. 6. Common cold is caused by which type of microbe? Fungi Algae Bacteria Virus 7. Malaria is caused by which type of microbe? Algae Fungi Bacteria Protozoa 8. Which one of the following is not a method of food preservation? Drying Pickling Boiling Salting 9. The gas released during the preparation of bread is Oxygen Sulphur dioxide Nitrogen Carbon dioxide 10. Substance used to produce immunity against diseases in the living body is called antibody vaccine antigen immune Download WordPress Themes FreeFree Download WordPress ThemesFree Download WordPress ThemesFree Download WordPress Themeslynda course free downloaddownload huawei firmwareDownload WordPress Themeslynda course free download
