Volcanologists are scientists who study volcanoes and volcanic activity. They analyze the processes that lead to eruptions, the materials that are expelled, and the effects of these eruptions on the environment and human life. Their work helps to predict volcanic eruptions and assess risks to nearby communities. These experts use various tools and techniques, including satellite imagery and seismic monitoring, to gather data. They often collaborate with other scientists and organizations, such as geologists and emergency management agencies, to improve safety measures and develop effective response strategies during volcanic events.