SCIENCE
BIOLOGICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is the total mass of living material in a habitat
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The plant and animal material which has been decomposed
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The process by which soil organic matter is converted to humus.
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A community of microorganisms (e.g. bacteria and fungi) that inhabit a particular environment
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Detailed explanation-1: -In the process of humification, humus is produced by the decomposition of plant twigs, wood, etc. Humification affects soil quality, its colour and texture. Black or dark brown coloured soil is rich in humus. The water content of the soil is also dependent on humification.
Detailed explanation-2: -Humus can be produced naturally or through a process called composting. When people compost, they collect decaying organic material, such as food and garden scraps, that will be turned into soil. Compost, like humus, is made of decomposed organic material.
Detailed explanation-3: -Humification is the process by which plant litter is converted into soil organic matter (SOM) and is vital for improving soil fertility1, 2.
Detailed explanation-4: -Humus supports in binding of the soil particles. For the growth of microorganisms, humification preserves the optimal pH in the soil. It enhances soil fertility and the soil’s organic content.
Detailed explanation-5: -The humification index was determined from the equation proposed by Milori et al. (2006), HFIL = ACF/CT, i.e. the humification index is equal to the ratio between the fluorescence curve area and the total C presented in the samples.