Which of the following is not a organic matter in soil?

Options

A. Clay particles
B. Humus
C. Detritus
D. Litter

Answer

To determine which of the following is not an organic matter in soil, we need to analyze each option provided:

1. **Clay particles**: These are not organic matter; they are mineral particles that make up a significant portion of soil. Clay is formed from the weathering of rocks and does not contain carbon-based compounds, which are characteristic of organic matter.

2. **Humus**: This is indeed an organic component of the soil. It is formed from the decomposition of leaves and other plant materials. Humus plays a crucial role in enhancing soil fertility and structure.

3. **Detritus**: This refers to decomposed organic matter produced by the breakdown of dead organisms. It consists of organic materials and is considered organic matter in the soil.

4. **Litter**: This is the layer of dead organic material, such as fallen leaves, animal remains, and excreta, that accumulates on the soil surface. It is also classified as organic matter.

After analyzing all options, we can conclude that the correct answer is:

**Answer: Clay particles (Option 1)** - They are not organic matter in soil.