Several examples of sphere interactions can be inferred from this photograph: Humans (biosphere) built a dam out of rock materials (geosphere). Water in the lake (hydrosphere) seeps into the cliff walls behind the dam, becoming groundwater (geosphere), or evaporating into the air (atmosphere).
When an ion or a molecule passes through a membrane without something facilitating, or encouraging that passage, such as a protein does. What drives it is the force of the diffusion itself instead.
