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TNPSC Biology Questions and Answers

General Science
5. Which one of the following plants is biennial?
 
  • A. pineapple
  • B. carrot
  • C. banana
  • D. jack fruit
 
6. Chicken pox is caused by
 
  • A. protozoa
  • B. virus
  • C. bacteria
  • D. none of these
 
7. Bacterial ribosomes of
 
  • A. 70 S
  • B. 50 S
  • C. 80 S
  • D. 30 S
 
8. Which of the following gas causes heart disease?
 
  • A. ozone
  • B. nitrogen oxides
  • C. carbon monoxide
  • D. sulphur dioxide