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What is defined as liquid moisture on the surface and held in the pores of a material?

  1. Free water

  2. Humidity

  3. Dew

  4. Condensation

The correct answer is: Free water

The term that describes liquid moisture present both on the surface and within the pores of a material is referred to as free water. Free water is distinct from other types of moisture, such as vapor or humidity, because it represents liquid in its unbound form, which can easily be removed from the material. This condition is critical when considering mold remediation because the presence of free water can lead to microbial growth if not adequately managed. Understanding the difference between free water and other moisture states is essential for effective mold assessments and remediation strategies, as it directly influences the potential for damage and contamination in indoor environments.