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Question

Decay of organic matter releases the gas into air is

A.Nitrogen

B.ammonia

c.carbondioxide

D.none

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Solution

Correct Option

(C) Carbon dioxide

Decomposition of organic matter involves four component processes:

1. Photo-oxidation: Leaching, comminution, and mineralization. Arthropods are key factors influencing comminution and mineralization.

2. Decomposition: Most commonly is measured as respiration rate, as the ratio of litter input to litter standing crop, or as the rate of litter disappearance. Isotopic tracers also provide data on decomposition rate. Decomposition rate typically is higher in mesic than in arid ecosystems. Decomposition generally can be modeled as a multiple negative exponential decay function over time, with decay constants proportional to the quality of litter components. Detritivores affect decomposition through comminution, effects on microbial biomass, and effects on mineralization.

3. Comminution: increases detrital surface area and facilitates colonization and decay by microflora. Not all organic material is converted to CO2


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