Class VIII

Which of the following is not a communicable disease?
  1. Cholera
  2. Chicken pox
  3. Tuberculosis
  4. Malaria
The microorganisms that cause diseases in human beings, plants and animals are called ____
  1. Carriers
  2. Spirogyra
  3. Pathogens
  4. Antibodies
Which of the following bacteria is involved in the fixation of nitrogen in leguminous plants?
  1. Rod-shaped bacteria
  2. Spiral bacteria
  3. Rhizobium
  4. Spherical bacteria
The process of conversion of sugar into alcohol is known as ...
  1. Budding
  2. Fusion
  3. Fermentation
  4. Fixation
Chicken Pox is caused by
  1. Virus
  2. Bacteria
  3. Fungus
  4. Protozoa
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