Ans :- Biotechnologyhasapplicationsin four major industrial areas, including health care (medical), crop production and agriculture, non-food (industrial)usesof crops and other products (e.g. biodegradable plastics, vegetable oil, biofuels), and environmental uses.Biotechnology means any technological application that uses biological systems or living organisms to make or modify products or processes for specific use. It refers to the use of microorganisms such as bacteria, yeasts, or biological substances such as enzymes, to perform specific industrial or manufacturing processes. Applications include production of certain drugs, synthetic hormones, and bulk foodstuffs as well as bioconversion of organic waste. Bio- Technology is concerned with variety of subjects including Biochemistry, Genetics, Microbiology, Chemistry and Engineering. Biotechnology has wide areas of application in Agriculture, Animal Husbandry, development of Medicines and Vaccine, treatment of prolonged disease, pollution control and waste management and ecological conservation, energy production and conservation and many more.