Q.91)-The source of oxygen in a atmosphere is due to
  • Photosynthesis
  • Excretion
  • Nitrogen fixation
  • Respiration
Q.92)-Insectivorus plant' trap insects for
  • Nitrtogen
  • Fars
  • Vitamins
  • Carbohydrate's
Q.93)-Microbial degradation of nitrates into atmospheric nitrogen is known as
  • Ammonification
  • Nitrification
  • Denitrification
  • Putrefaction
Q.94)-Damping off of seedings is caused by
  • Peronospola parasitrica
  • Albugo Candida
  • Phytophthora infestans
  • Phythium debaryanum
Q.95)-Transpiration increases in
  • Hot, dry and windy condition
  • Hot, damp and windy condition
  • Cool, damp and windy condition
  • Cool dry and still condition