Correct option is C
Analysis of the statements:
1. A. Compost is a humus-like material:
· True. Compost is an organic matter that undergoes decomposition, resulting in a dark, humus-like substance that enriches the soil.
2. B. Biodegradation process during composting is endothermic:
· False. Composting is an exothermic process, releasing heat as microbes break down organic matter.
3. C. Compost improves soil structure:
· True. Compost adds organic matter to soil, improving its structure, aeration, and water retention.
4. D. Compost decreases moisture-holding capacity:
· False. Compost increases the soil's moisture-holding capacity by enhancing the soil's porosity and organic content.
5. E. Compost increases buffering capacity of soils:
· True. Compost enhances the buffering capacity, making soil more resistant to pH changes and better equipped to sustain plant growth.
Key Explanation: 1. Compost Properties:
· Compost is rich in organic nutrients and acts as a soil conditioner.
· It improves soil aeration, structure, and water retention while supplying essential nutrients for plant growth.
2. Process of Composting:
· Microbial activity during composting is exothermic, generating heat that helps in breaking down organic materials.
3. Buffering Capacity:
· Compost helps neutralize soil pH, ensuring that the soil remains fertile and resilient to acidic or alkaline conditions.
Information Booster: 1. Benefits of Compost:
· Enhances soil fertility and productivity.
· Reduces dependency on chemical fertilizers.
· Promotes microbial activity and biodiversity in the soil.
2. Composting Types:
· Aerobic Composting: Requires oxygen and produces heat.
· Anaerobic Composting: Occurs in the absence of oxygen and produces methane.
3. Environmental Impact:
· Reduces waste sent to landfills.
· Minimizes greenhouse gas emissions compared to unmanaged organic waste decomposition.