Atmosphere: The mixture of gases around the earth.
Noun.These factories are releasing toxic gases into the atmosphere.
Biosphere: A part of a planet's environment where life exists.
Noun. With a massive impact, a biosphere gets another chance.
Geosphere: any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
Noun. The geosphere is big
Hydrosphere: All of the water, ice, and water vapor at or near the surface of a planet.
Noun. He wrote a paper on the evolution of the Martian hydrosphere.
Astronomy: The scientific study of the universe and of objects that exist naturally in space, such as the moon, the sun, planets, and stars
Noun. Unlike astronomy, astrology cannot be described as an exact science.
Climatology: he scientific study of climate (= general or long-term weather conditions)
Noun. Time-series analysis is routinely found in physics, electronics, geophysics, astrophysics, climatology, computer science and biometric applications.
Geology: The study of the rocks and similar substances that make up the earth's surface
Noun. A geology professor/student/class/department.
Hydrology: The study of water on the earth, for example, where it is and how it is used
Noun. Characteristic associations of pollen taxa are found under differing hydrologies and elevations.
Meteorology: The scientific study of the processes that cause particular weather conditions
Noun. Particle sizing in remote sensing, which must rely on backscattering using several wavelengths, is an importani topic in experimental meteorology.
Oceanography: the scientific study of the sea
Noun. One may find direct analogues of this situation in oceanography and meteorology.
Paleontology: the scientific study of organisms that lived on earth before there were written records, esp. by examining fossils
Noun. Combining embryology and paleontology: origins of the anterior- posterior axis in echinoids.
physical geography: the study of the natural features of the earth, such as mountains and rivers
Noun. Such an approach gives emphasis to the social construction of the physical geography of the city.
astro =star: comes from the Greek ástron, meaning “star.”
Noun. The word astronomy comes from a Greek word that literally (and poetically) means “star-arranging.”
Atmos =vapor:the gaseous envelope surrounding the earth
Noun. The first part of atmosphere, atmo-, means “smoke” or “vapor,” as we've seen.
Bio= life : The property or quality that distinguishes living organisms from dead organisms and inanimate matter,
Noun. the environment originating from within the organism.
Clima =region: The climate in a certain place on earth is the regional climate.
Noun. The regional climate depends on the long-term temperature, precipitation, and winds experienced at that location.
