Biology · PYQ NEET UG 2018

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

1. A
   \( -196^\circ\text{C} \)
2. B
   \( -80^\circ\text{C} \)
3. C
   \( -120^\circ\text{C} \)
4. D
   \( -160^\circ\text{C} \)