In this equation, what shows that transmutation has taken place? 242 Cm 328 Pu +He
O A. The number of atoms is conserved, but the number of nucleons is
not.
B. It involves more than one element.
C. The nucleus of an atom changes.
D. There is conservation of both nucleons and atoms.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.