I believe the answer to this is Fermentation and anaerobic respiration.
Number 13 is C
Number 14 is C
Number 15 is B
Carbon dioxide, but you can minimize this by adding a paraffin lamp (this could also raise the temp. and stop heat as a limiting factor)
Explanation:
Biodiversity means the diversity in different species which are dependent for nutrient involved in nutrient chain.by introducing many more cattle is not a diversity it will be a same species and it will only increase Biomass
