Geochemical processes refer to the chemical interactions and transformations that occur within the Earth's systems, including the atmosphere, hydrosphere, and lithosphere. These processes play a crucial role in shaping our planet's environment, influencing everything from soil formation to the cycling of nutrients. For example, the weathering of rocks releases minerals into the soil, which are essential for plant growth. Additionally, geochemical processes are vital in understanding natural phenomena like volcanic eruptions and earthquakes. They help scientists study how elements like carbon and nitrogen cycle through ecosystems, impacting climate change and biodiversity. By examining these processes, we can better manage natural resources and protect our environment.