Geochemists are scientists who study the chemical composition of the Earth and its processes. They analyze rocks, minerals, soil, and water to understand how chemical elements interact and change over time. This information helps in areas like natural resource management, environmental protection, and understanding geological hazards. They often use advanced tools and techniques, such as mass spectrometry and chromatography, to conduct their research. Geochemists may work in various settings, including universities, government agencies, and private companies. Their work is essential for addressing issues related to climate change, pollution, and the sustainable use of natural resources.