Geophysics is the study of the Earth using principles of physics. It involves analyzing physical properties like gravity, magnetism, and seismic waves to understand the Earth's structure and processes. Geophysicists use various tools and techniques to explore natural resources, assess natural hazards, and study environmental changes. This field plays a crucial role in areas such as earthquake prediction, oil and gas exploration, and mineral resource management. By examining the Earth's physical characteristics, geophysicists contribute to our understanding of geological phenomena and help inform decisions related to land use and environmental protection.