Which description best defines composting?

Which description best defines composting?

• A. An artificial process that converts organic waste into fertilizer
• B. A mechanical separation of recyclables
• C. A chemical treatment of waste
• D. A natural breakdown of organic waste into nutrient-rich soil

Answer: (D)

Composting is a natural, biological process where microorganisms break down organic waste into a dark, crumbly, nutrient-rich material that can be added to soil as a conditioner or fertilizer. This description captures the essence of composting as a biological breakdown driven by natural organisms, usually under conditions with some oxygen and moisture, and results in material that improves soil health. That is why the description of a natural breakdown of organic waste into nutrient-rich soil is the best fit. It emphasizes the organic, living-process aspect and the end product used to enrich soil. It isn’t an artificial chemical treatment, nor a mechanical separation of recyclables, so those descriptions don’t align with what composting actually involves.

Composting is a natural, biological process where microorganisms break down organic waste into a dark, crumbly, nutrient-rich material that can be added to soil as a conditioner or fertilizer. This description captures the essence of composting as a biological breakdown driven by natural organisms, usually under conditions with some oxygen and moisture, and results in material that improves soil health.

That is why the description of a natural breakdown of organic waste into nutrient-rich soil is the best fit. It emphasizes the organic, living-process aspect and the end product used to enrich soil.

It isn’t an artificial chemical treatment, nor a mechanical separation of recyclables, so those descriptions don’t align with what composting actually involves.