What type of environment ideally supports mould growth?

Mould thrives in environments that provide the essential elements for its growth: moisture, warmth, and darkness. A humid and dark space meets these conditions perfectly. High humidity levels provide the necessary moisture that mould requires to propagate, while darkness helps to protect the spores from UV light, which can be detrimental to their growth.

In contrast, a dry and well-ventilated area would lack the moisture that mould needs. A cold and isolated environment does not offer the warmth that mould prefers, and a sterile and controlled lab setting is designed to minimize microbial growth, making it unsuitable for mould development. Therefore, the characteristics of a humid and dark space create an ideal breeding ground for mould, leading to its proliferation and potential health hazards.