An aeologist, more commonly referred to as a geologist, studies the Earth's structure, composition, and processes. They investigate rocks, minerals, and fossils to understand the planet's history and the dynamics of its systems, including earthquakes, volcanoes, and erosion. Geologists often conduct fieldwork, collect samples, and analyze data to assess Natural Resources and environmental changes. Their work is crucial for natural resource management, environmental protection, and understanding geological hazards.