Complete the following table (Carefully study the carbon, oxygen and nitrogen cycles).
Bio-geo-chemical cycles Biotic processes
Abiotic processes
1. Carbon cycle
2. Oxygen cycle
3. Nitrogen cycle
Answers
Complete the following table (Carefully study the carbon, oxygen and nitrogen cycles).
Bio-geo-chemical cycles Biotic processes
Abiotic processes
1. Carbon cycle
2. Oxygen cycle
3. Nitrogen cycle
1. Carbon cycle :-
★Biotic process :- Realise of oxygen and CO2 through photosynthesis and respiration respectively.
★Abiotic process :- Release of CO2 in atmosphere by burning of fossil fuels , woods etc.
2. Oxygen cycle :-
★Biotic process :- Relese of O2 through photosynthesis and it's consumption in processes like respiration , etc.
★Abiotoc process :- Photo dissociationof water vapour in the upper atmosphere, as a result of which oxygen is realeased when water molecules are split by light.
3. Nitrogen cycle :-
★Biotic process :- Nirtogen fixation , nitrification , amoonificatiom .
★Abiotic process :- Nirtogen fixation in the atmosphere and dentrification.