Ace the LEED Green Associate Exam 2025 – Go Green, Go Great!

Aeroponics is a highly efficient agricultural technique that involves cultivating plants in an air or mist environment without the use of soil. In this method, the roots of the plants are suspended in the air, and nutrient-rich solutions are delivered directly to the roots via mist or fog. This allows for optimal nutrient absorption, increased oxygen exposure for the roots, and reduced water usage compared to traditional soil-based methods.

The other choices do not correctly define aeroponics. Growing crops in nutrient-rich water describes hydroponics, which uses a liquid medium instead of air. Controlling indoor air quality relates to ventilation and filtration systems, while recycling plant waste into compost is a separate practice of waste management and nutrient recycling that does not involve cultivating plants in the air. Therefore, the definition of aeroponics as growing plants in air or mist aligns perfectly with its recognized characteristics in sustainable agriculture.