Pest Control Technician Practice Exam

What is microbial degradation?

1. Breakdown of a chemical by microorganisms

2. Weakening of material by exposure to chemicals

3. A method to filter air particles

4. An air space separating water supply outlets

The correct answer is: Breakdown of a chemical by microorganisms

Microbial degradation refers to the process by which microorganisms, such as bacteria and fungi, break down organic substances into simpler compounds. This biological process plays a crucial role in the natural recycling of nutrients in the environment and is significant in various applications, including waste management and bioremediation. By breaking down complex organic materials, microorganisms help return essential nutrients to the soil, thereby supporting plant growth and maintaining ecological balance. This process is essential in managing organic waste, as it facilitates decomposition and reduces the volume of waste in landfills. Other choices outline different concepts unrelated to microbial actions or the breakdown of compounds by microorganisms. For instance, the weakening of material by exposure to chemicals involves physical or chemical degradation rather than biological activity. Filtering air particles pertains to air purification methods, and separating water supply outlets involves plumbing design, none of which relate to the microbial activity of breaking down substances.