Question

Identify the option which correctly explains the processes mentioned as A,B and C in the nitrogen cycle.

• A. A = Nitrogen compounds are broken
  B = Nitrogen is broken
  C = Nitrogen compounds formed
• B. A = Nitrogen converted into Nitrogenin containing compounds
  B = Animals eats plants
  C = Nitrogen compounds converted into Nitrogen gas
• C. A = Nitrogen compounds formed
  B = Animals excretes nitrogen compound
  C = Nitrogen $\to N_2$ gas
• D. None of the above

Answer 1

The correct option is B A = Nitrogen converted into Nitrogenin containing compounds

B = Animals eats plants
C = Nitrogen compounds converted into Nitrogen gas

A = Nitrogen is converted into nitrogen compounds.

B = Animals eat plants.

C = Nitrogen compounds converted into nitrogen gas.

The atmospheric nitrogen is converted into nitrogen compounds using several methods i.e. nitrogen fixation. These nitrogen compounds all up took by plants. Animals eat plants and both the animal and plant biomass is decomposed and converted into ammonia by the process called ammonification. Nitrification is a process of the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate. Denitrification is the process by which the nitrogen compounds are converted into nitrogen gas.