8th Standard Science Chapter-3 November 30, 2020December 26, 2020wefru 8th Standard Science quiz Chapter-3 0 Created on November 30, 2020 By wefru 8th Standard Science Chapter 3 CHECK YOUR SKILLS BROADLY 1 / 10 1. Which of the following is a disease caused by protozoans Tuberculosis Polio Malaria Typhoid 2 / 10 2. Which of the following diseases is caused by a bacteria? Chicken pox Tuberculosis Dengue Polio 3 / 10 3. Some plants have nitrogen-fixing bacteria in their root nodules. What are these bacteria called? Blue green algae Nitrosomonas Azotobacter Rhizobium 4 / 10 4. In order to take precautionary steps to control dengue, we must take measures to stop the breeding of: Aedes mosquito Fleas Fire ants Anopheles mosquito 5 / 10 5. Partial sterilization of a product such as milk at a high temperature is known as: Pasteurization Filtration Pickling Refrigeration 6 / 10 6. Living organisms which are invisible to the naked eye are called _________ . Particles Molecules Microorganisms Macroorganisms 7 / 10 7. Which of the following is a communicable disease? Diabetes Chicken pox Alzheimer’s Cancer 8 / 10 8. Vaccines are made up of: Chemicals Viruses Weak microorganisms Drugs 9 / 10 9. The bacterium present in curd is: Salmonella typhi Penicillin Vibrio cholera Lactobacillus 10 / 10 10. While baking cakes, yeast reproduces rapidly and produces ___ gas. Hydrogen Oxygen carbon dioxide nitrogen Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz