Question

Which of the following is true regarding decomposition of dead animals or plants?

• A. Nutrients in the soil are absorbed by plants and decomposers.
• B. Complex organic substances are converted into simpler inorganic substances.
• C. Complex inorganic substances are converted into simple organic substances.
• D. Fertility of soil decreases gradually.

Answer 1

The correct option is B

Complex organic substances are converted into simpler inorganic substances.

Decomposition is the process by which organic substances are broken down into much simpler inorganic forms of matter. These act as nutrients for plants to grow and adds on to the fertility of soil. Decomposition is an essential recycling process and is carried out by microorganisms like bacteria and fungi.