Which of the following statements is correct?
I. Converting plant and animal waste including that from kitchen into manure is called composting.
II. The method of making compost from kitchen garbage using redworms is called vermicomposting.

Question

Which of the following statements is correct?

I. Converting plant and animal waste including that from kitchen into manure is called composting.

II. The method of making compost from kitchen garbage using redworms is called vermicomposting.

Prepp Team · Accepted Answer

Understanding Composting and Vermicomposting

Let's analyze the given statements about composting and vermicomposting to determine which ones are correct.

We need to examine each statement carefully based on the standard definitions of these terms.

Statement I: Converting plant and animal waste including that from kitchen into manure is called composting.

Composting is a natural process of decomposition. It involves breaking down organic matter, such as plant residues, animal waste, and kitchen scraps, into a nutrient-rich material called compost or manure. This process relies on microorganisms like bacteria and fungi, as well as invertebrates like worms and insects, under controlled conditions of moisture, aeration, and temperature.

Based on this definition, converting plant and animal waste, including kitchen waste, into manure (compost) is indeed the definition of composting.

Therefore, Statement I is correct.

Statement II: The method of making compost from kitchen garbage using redworms is called vermicomposting.

Vermicomposting is a specific type of composting that utilizes certain species of earthworms, most commonly redworms (like Eisenia fetida or Lumbricus rubellus), to accelerate the decomposition of organic waste. This waste typically includes kitchen scraps, paper, and cardboard.

The worms consume the organic material and excrete nutrient-rich castings, which are essentially vermicompost. This method is known for producing high-quality compost relatively quickly.

Based on this definition, using redworms to make compost from kitchen garbage is exactly what vermicomposting is.

Therefore, Statement II is correct.

Conclusion

Both statements accurately describe the processes they refer to:

Statement I correctly defines composting as the conversion of various organic wastes into manure.
Statement II correctly defines vermicomposting as a method using redworms for composting, often focusing on kitchen garbage.

Thus, both Statement I and Statement II are correct.

Revision Table: Composting vs. Vermicomposting

Feature	Composting	Vermicomposting
Definition	Decomposition of organic matter into compost/manure by microorganisms.	Decomposition of organic matter by specific earthworms (redworms).
Primary Agents	Microorganisms (bacteria, fungi), insects, etc.	Earthworms (Redworms) and associated microorganisms.
Waste Types	Broad range: plant waste, animal waste, kitchen waste, etc.	Primarily kitchen scraps, paper, cardboard; less suitable for meat, dairy, oils.
Process Speed	Can be slower, depending on method and conditions.	Generally faster than traditional composting for suitable waste.
Output (Compost)	Manure/Compost	Vermicompost (worm castings) - often richer.

Additional Information on Organic Waste Management

Effective organic waste management is crucial for environmental sustainability. Composting and vermicomposting are excellent ways to divert waste from landfills and create valuable soil amendments.

Benefits of Composting/Vermicomposting: Reduces landfill waste, produces nutrient-rich fertilizer, improves soil structure and water retention, reduces the need for chemical fertilizers.
Types of Organic Waste:
- Greens: Nitrogen-rich materials like kitchen scraps (fruit & vegetable peels, coffee grounds), grass clippings, green leaves.
- Browns: Carbon-rich materials like dry leaves, straw, shredded paper, cardboard, saw dust.
Composting Conditions: Requires a balance of greens and browns, adequate moisture, aeration (turning the pile), and suitable temperature.
Vermicomposting Setup: Typically done in a worm bin, which needs ventilation and drainage. The bin contains bedding material (shredded paper, coir) for the redworms.