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Enviromental
Enviromental flash cards
29
Environmental Studies
12th Grade
08/12/2016

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Term
Glacier
Definition

a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles

Term
Surface Runoff
Definition

Is water, from rain, snowmelt, or other sources, that flows over the land surface, and is a major component of the water cycle

Term
Evaporation
Definition

is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase

Term
Transpiration
Definition
evaporation of water from a plant leaf
Term
Inner core
Definition

the Earth's innermost part, composed of an iron-nickel alloy and some light elements.

Term
Outer Core
Definition

composed of iron and nickel which lies above the Earth's solid inner core and below its mantle

Term
Metamorphic
Definition

A type of rock that forms from an existing rock that is changed by heat/pressure/reactions

Term
Igenous
Definition

A type of rock that forms from the cooling of molten rock at or below the surface

Term

sedimentary

Definition

Rock formed from the consolidation of loose sediment or from chemical precipitation, such as sandstone and limestone

Term
Deposition
Definition

geological process in which sediments, soil and rocks are added to a landform or land mass

Term
Magma
Definition

hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling

Term
Mantle
Definition

The zone of the earth below the crust and above the core.

Term
Lithosphere
Definition

the solid part of the earth (crust, outer mantle)

Term
Asthenosphere
Definition

The soft layer of the mantle on which the lithosphere floats

Term
Minerals
Definition

is a crystalline solid formed through natural processes, can be an element or a compound

Term
Erosion
Definition

Condition in which the earth's surface is worn away by the action of water and wind

Term
Precipitation
Definition

is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail

Term
Fault Zones
Definition

within the Earth's crust result from the action of plate tectonic forces,cause of most earthquakes

Term
Earthquakes
Definition

Are the vibrations caused by rocks breaking under stress. The underground surface along which the rock breaks and moves is called a fault plane

Term
Seismic Activity
Definition

is defined as the types, frequency and size of earthquakes that happen over a period of time in a certain area

Term
Epicenter
Definition

the point on the earth's surface vertically above the focus of an earthquake

Term
Richter Scale
Definition

a numerical scale for expressing the magnitude of an earthquake

Term
Continental Crust
Definition

he relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust

Term
Oceanic Crust
Definition

the relatively thin part of the earth's crust that underlies the ocean basins. It is geologically young compared with the continental crust and consists of basaltic rock overlain by sediments

Term
Divergent Plate Boundaries
Definition

Plates moving away from each other in opposite directions

Term
Subduction
Definition

the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate

Term
Hot Spots
Definition

a small area or region with a relatively hot temperature in comparison to its surroundings

Term
Tectonic Cycle
Definition

refers to the movement of large portions of the earth's crust in what is termed "plates"

Term
Seafloor Spreading
Definition

the formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side

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