Mary was practicing half life problems and determined that after 16 days only 3.0grams of a 12-gram sample of I-131 remained. The half life of I-131 is 8 days. Construct an argument that supports or refutes Mary’s answer to the problem. In your argument include a method that shows that Mary’s answer was either correct or incorrect

i don't know. if i were you, i would search it up online : d

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.