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Botany Questions and Answers

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46. Carbohydrates and fats are called
 
  • A. vitamin
  • B. minerals
  • C. body builders
  • D. energy producers
 
47. Bleeding of gums is one of the symptoms of
 
  • A. scurvy
  • B. pellagra
  • C. beri-beri
  • D. sterility
 
 
48. Ozone layer occurs in
 
  • A. atmosphere
  • B. stratosphere
  • C. troposphere
  • D. Hygrosphere
 
49. Green house effect is caused due to
 
  • A. land pollution
  • B. water pollution
  • C. air pollution
  • D. sound pollution
 
50. Global warming is due to
 
  • A. increase in CO2 concentration
  • B. increase in O2 concentration
  • C. increase in NO2 concentration
  • D. increase in SO2 concentration