An atom that has the same amount of atoms of each element on both sides of the reaction obeys what law?

question 7 options:

law of conservation of energy

law of conservation of mass

law of conservation of temperature

law of conservation of 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.

the correct answer is 2 and 4