Nuclear techniques involve the use of nuclear reactions and radiation to analyze and manipulate materials. These methods are widely used in various fields, including medicine, agriculture, and environmental science. For example, radiation therapy uses targeted radiation to treat cancer, while nuclear imaging helps doctors diagnose diseases by visualizing internal organs. In agriculture, nuclear techniques can improve crop yields and pest control through radiation-induced mutation and isotope tracing. Additionally, these methods are valuable in environmental studies, where they help track pollution sources and assess the health of ecosystems. Overall, nuclear techniques provide powerful tools for research and practical applications.