Biotechnology is the use of living organisms or their components to develop products. It involves using biological processes like genetic engineering for agriculture, health care, industrial and environmental uses. There are four main branches of biotechnology: blue focuses on aquatic applications; green involves agricultural processes like designing crops; red develops medical processes and pharmaceuticals; and white applies to industrial processes like producing chemicals using organisms. Biotechnology has wide applications from food production and processing to treating waste, manufacturing products, and developing vaccines and antibiotics.