Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Mayank vedwal Vedwal Best Answer
Continuous bombardment of cosmic rays on N-14 generates the C-14 in atmosphere. In this process neutrons react with N-14 and form C-14 and a proton in atmosphere.