What over laps the three spheres?

Answer 1

The three spheres—often referred to in the context of environmental science as the atmosphere, hydrosphere, and lithosphere—overlap in areas where these systems interact. For instance, ecosystems thrive where the atmosphere provides air, the hydrosphere offers water, and the lithosphere supplies nutrients and habitat. This overlap is vital for sustaining life, as it enables processes such as weather patterns, nutrient cycling, and the distribution of organisms. These interactions highlight the interconnectedness of Earth's systems and the importance of preserving their integrity.