atmosphere: the envelope of gases surrounding the earth or another planet.
Part of speech: noun: part of the sun's energy is absorbed by the earth's atmosphere
biosphere: the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
Part of speech: noun: noun: We live in the biosphere
geosphere: any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
Part of speech: noun: The geosphere is one of the layers of the atmosphere