chapter 3 deck Flashcards
geosphere
any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
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.
crust
form into a hard outer layer.
mantle
A mantle is a layer inside a planetary body bounded below by a core and above by a crust.
core
is the innermost geologic layer of the Earth.
lithosphere
the rigid outer part of the earth, consisting of the crust and upper mantle.
asthenosphere
the upper layer of the earth’s mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
tectonic plates
scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth’s lithosphere
chemical weather
the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes.
erosion
the process of eroding or being eroded by wind, water, or other natural agents.
atmosphere
the envelope of gases surrounding the earth or another planet.
troposphere
the lowest region of the atmosphere, extending from the earth’s surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.
stratosphere
the layer of the earth’s atmosphere above the troposphere, extending to about 32 miles (50 km) above the earth’s surface (the lower boundary of the mesosphere).
ozone
a colorless unstable toxic gas with a pungent odor and powerful oxidizing properties, formed from oxygen by electrical discharges or ultraviolet light.
radiation
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
conduction
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions,
convection
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity,
greenhouse effect
the trapping of the sun’s warmth in a planet’s lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet’s surface.
water cycle
the cycle of processes by which water circulates between the earth’s oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.
evaporation
the process of turning from liquid into vapor.
condensation
water which collects as droplets on a cold surface when humid air is in contact with it.
precipitation
the action or process of precipitating a substance from a solution.
salinity
the quality or degree of being saline.
fresh water
not from the sea.
biosphere
the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.