Final answer:
Discoloration in the attic or near windows and doors can indicate the presence of harmful mold growth that can be detrimental to human health.
Step-by-step explanation:
Discoloration in the attic or near windows and doors can indicate the presence of mold.
Mold growth is often accompanied by a musty odor and can be harmful to human health.
Mold releases spores that can trigger allergic reactions, respiratory problems, and other health issues, especially in individuals with existing respiratory conditions or weakened immune systems.