Answer:
Plants can use ammonia as a nitrogen source. After ammonium fixation, the ammonia and ammonium that is formed will be transferred further, during the nitrification process. Aerobic bacteria use oxygen to convert these compounds.
812.5/1.25=650
So it will take 650 years to widen another 812.5 centimeters
Answer:
The head got bigger and the face got smaller. Hope his helps.
