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to test or verify (a scientific experiment) by a parallel experiment or other standard of comparison.
a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past adjacent plates.
the transfer of heat by the mass movement of heated particles into an area of cooler fluid.
are found at the edge of the lithospheric plates and are of three types, convergent, divergent and conservative.
the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.
the process by which collision of the earth's crustal plates results in one plate's being drawn down or overridden by another, localized along the juncture (subduction zone) of two plates.
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together.
sequence of events in which rocks are formed, destroyed, altered, and reformed by geological processes.
the continuous process by which water moves from Earth's surface to the atmosphere and back.
any geological formation containing or conducting ground water, especially one that supplies the water for wells, springs, etc.
Mechanical/ Physical Weathering
no chemical alteration; just breakdown/disintegration into smaller fragments.
organism that can capture energy from sunlight or chemicals and use it to produce food from inorganic compounds; also called an autotroph.
an organism that lives on or in an organism of another species, known as the host, from the body of which it obtains nutriment.
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