The four spheres of the Earth include:
Atmosphere- the gaseous layer of the earth
Ex. We can interact with the atmosphere through the gases that we inhale- oxygen (O2) and exhale- carbon dioxide (CO2).
Lithosphere- refers to other solid crust of the Earth
Ex. Humans can interact with the lithosphere through agriculture (source of food), mining, building infrastructure.
Hydrosphere- comprises all water in the Earth
Ex. We can interact with the hydrosphere through the water that we drink.
Biosphere- includes all the living things on the Earth
Ex. We can interact with the biosphere through hunting (source of food)