Wood Destroying Organism (WDO) Home Inspection Practice Exam

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What environmental factor is most critical in preventing termite infestations?

Humidity
Temperature
Light
Soil type

The correct answer is: Humidity

Humidity is a key environmental factor in preventing termite infestations because termites require moisture to thrive. They are particularly drawn to environments with high humidity, which is essential for their survival and the functioning of their nest. Dry conditions can create an inhospitable environment, making it difficult for termites to obtain the moisture they need. By controlling humidity levels, homeowners can significantly reduce the likelihood of termite activity, as termites are less likely to establish colonies in drier conditions. While temperature, light, and soil type can influence termite behavior and habitat, it is humidity that plays the most direct role in their life cycle and habitat preferences. Termites are more likely to invade structures when the humidity levels are favorable, as that supports their nesting and feeding requirements. Thus, maintaining low humidity levels in and around the home is a critical strategy for controlling and preventing termite infestations.