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