Question

The organic matter of soil has the value

• A. 25%
• B. 50%
• C. 40%
• D. 5%

Answer 1

Answer: (D)

5%

Soil organic matter is the organic matter component of soil, consisting of plant and animal residues at various stages of decomposition, cells, and tissues of soil organisms, and substances synthesized by soil organisms.

For gardens and landscapes, the proportion of organic matter is about 4%-6%.

Hence, the correct option is (D).