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World Geo Secs 1-4

World Geography, sections 1, 2, 3, and 4.

TermDefinition
sediment is formed when physical or chemical processes weather rock on or near the earth's surface
mechanical weathering is the type of weathering that changes the size of a rock, but not its composition
a delta is a fan-like landform that is created when a river carries sediment to the ocean
humus is the organic material that contributes to the fertility of soil
Glacation is a process by which moving masses of ice change the topography of a region
tectonic plates moving pieces of the earth that make up the earth's crust
an earthquake a seismograph measures the size of waves caused by
tsunami a giant ocean wave that is sometimes caused by an earthquake is called a
lava magma can flow out of cracks in the earth's surface as
a volcano the flow of magma through cracks in the earth's surface is called
ring of fire a chain of volcanoes that line the pacific rim
continental drift the hypothesis that all continents were once joined into a supercontinent that split apart over millions of years.
hydrosphere the ___________ is made up of tha=e water elements on the earth, which include oceans, seas, rivers, lakes, and water in the atmosphere
richter scale a way to measure information collected by seismographs to determine the relative strength of an earthquake
epicenter the point on the on the earth's surface that corresponds to the location in the earth where the earthquake begins
hydrologic cycle the continuous circulation of water among the atmosphere, the oceans, and the earth
drainage basin and area that has been drained by a major river and its tributaries
groundwater the water held under the earth's surface; often in and around the pores of rock
water table the level at which rock is saturated
landform a naturally formed feature on the surface of the earth.
continental shelf the earth's surface form the edge of the water to the deep part of the ocean
relief the difference in elevation of a landform from the lowest point to the highest point
Created by: drturner0997