Controlled environments refer to spaces where specific conditions, such as temperature, humidity, and light, are regulated to create optimal settings for various activities. These environments are commonly used in laboratories, greenhouses, and manufacturing facilities to ensure consistent results and protect sensitive materials or organisms. In agriculture, controlled environments like hydroponic systems and climate-controlled greenhouses allow for year-round crop production, minimizing the impact of external weather conditions. In scientific research, controlled environments help maintain the integrity of experiments by reducing variables that could affect outcomes, ensuring reliable and reproducible results.