Sanitation Worker Practice Exam 2025 – All-in-One Guide to Master Your Exam Success!

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What is the ideal temperature range for composting to be effective?

Between 100°F and 120°F

Between 130°F and 160°F

The ideal temperature range for effective composting is between 130°F and 160°F. This temperature range is critical because it promotes the activity of thermophilic microorganisms, which are essential for breaking down organic materials quickly and efficiently. When the compost temperature reaches this level, it ensures that pathogens, weed seeds, and harmful bacteria are effectively destroyed, resulting in a safe and healthy end product.

Composting at temperatures lower than this range may not provide sufficient heat to eliminate these unwanted materials. Conversely, temperatures consistently higher than 160°F can actually inhibit microbial activity, slowing down the composting process and potentially leading to nutrient loss through volatilization. Therefore, maintaining a temperature between 130°F and 160°F strikes a balance that maximizes microbial efficiency and ensures the effective breakdown of organic matter.

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Between 140°F and 170°F

Between 150°F and 180°F

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