Earth's Spheres
Earth science generally recognizes four spheres, the lithosphere, the hydrosphere, the atmosphere, and the biosphere; these correspond to rocks, water, air, and life. Some practitioners include, as part of the spheres of the Earth, the cryosphere (corresponding to ice) as a distinct portion of the hydrosphere, as well as the pedosphere (corresponding to soil) as an active and intermixed sphere.
Read more about this topic: Earth Science
Famous quotes containing the words earth and/or spheres:
“Have We not made the earth as a cradle and the mountains as pegs? And We created you in pairs, and We appointed your sleep for a rest; and We appointed night for a garment, and We appointed day for a livelihood. And We have built above you seven strong ones, and We appointed a blazing lamp and have sent down out of the rain-clouds water cascading that We may bring forth thereby grain and plants, and gardens luxuriant.”
—Qur’An. “The Tiding,” 78:6-16, trans. by Arthur J. Arberry (1955)
“Perhaps a modern society can remain stable only by eliminating adolescence, by giving its young, from the age of ten, the skills, responsibilities, and rewards of grownups, and opportunities for action in all spheres of life. Adolescence should be a time of useful action, while book learning and scholarship should be a preoccupation of adults.”
—Eric Hoffer (1902–1983)