Hydroponics is a method of cultivating plants without using soil. Instead, plants are grown with their roots suspended in a nutrient-rich water solution, which provides all the essential minerals and elements required for growth. This technique allows for precise control over the growing environment, reduces the risk of soil-borne diseases, and can lead to faster plant growth and higher yields. Hydroponics is widely used in urban agriculture, greenhouses, and research settings, offering an efficient and sustainable alternative to traditional soil-based farming.