Q. Pollen grains can be stored for several years in liquid nitrogen having a temperature of
A) -196°C
B) -80°C
C) -120°C
D) -160°C
Explanation
[Solution] Liquid nitrogen is at -196°C (cryopreservation). Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.