What conditions microorganisms like yeast and mould need for growth?

Microorganisms like yeast and mold require specific conditions for optimal growth, including moisture, a suitable temperature range (typically between 20°C to 30°C), and a source of nutrients such as sugars and organic matter. They thrive in environments with low light and can often grow on various substrates, including food and organic materials. Additionally, pH levels that are slightly acidic to neutral can also promote their growth.