Biosphere: The regions of the surface, atmosphere, and hydrosphere of the earth or analogous parts of other planets occupied by living organisms.

Atmos =vapor: Aseous envelop surrounding the earth.

Graphy =description: A combining form denoting a process or form of drawing, writing, representing, recording, describing, etc., or an art or science concerned with such a process.

Clima =region: Climate is the most frequent state of the atmosphere of a place on the earth's surface.

Hydrosphere: All the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.

Hydro =water: A combining form meaning “water,” used in the formation of compound words.

Astronomy: The branch of science which deals with celestial objects, space, and the physical universe as a whole.

Bio=life: Biology is the natural science that studies everything related to life and the organic, including processes, systems, etc.

Geo =earth: Is a prefix derived from the Greek word, meaning "earth", usually in the sense of "ground or land”.

Meteorology: the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.

Paleontology: The branch of science concerned with fossil animals and plants.

Geosphere: Any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.