A more thorough explanation:

Biotechnology is a field of science that uses biological processes to create useful products for medical and industrial purposes. It involves the manipulation of living organisms or their components to produce new and improved products.

For example, biotechnology can be used to create medicines, such as insulin for diabetes, using genetically modified bacteria. It can also be used to develop crops that are resistant to pests and diseases, which can help increase food production and reduce the use of harmful pesticides.

Another example of biotechnology is the production of biofuels, which are made from renewable sources such as corn and sugarcane. These fuels are more environmentally friendly than traditional fossil fuels and can help reduce greenhouse gas emissions.

In summary, biotechnology is a field of science that uses biological processes to create useful products for various industries, including medicine, agriculture, and energy.