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BJU Space/Earth 4

BJU - Space and Earth Science - Chapter 4 (4th edition)

DefinitionTerm
The central region of the interior of a celestial object. In the earth, it is the extremely dense metallic center surrounded by the rocklike mantle. Core
The relatively solid outermost layer of the earth. Crust
A concept underlying nearly all naturalistic historic science that refers to the unobservable distant past in terms of millions or billions of years ago. Deep-time View
The study of the structures, materials, and processes of the solid part of the earth. Geology
The rigid, rocky outer layer of the earth consisting of the crust and the outer mantle that act together as a unit. It averages 77 km thick under the oceans to nearly 300 km thick under the continents. Lithosphere
The portion of the earth's interior between the crust and the core. Mantle
The boundary between the earth's crust and mantle. It varies from about 7 km under oceans to about 50 km under continental mountain chains. Mohorovicic Discontinuity (Moho)
The belief that earth-forming processes are natural, have always been the same, and have always happened at the same gradual rate. “The present is the key to the past.” uniformitarianism
Any raw material from the natural invironment that we use or can use Natural resource
A natural resource that has an unlimited supply or is easily replenished Renewable resource
A natural resource that can’t be replenished and so is simply used up. Non-renewable resources can be conserved by recycling and by finding alternative materials. Non-renewable resource
Efforts to oversee and wisely control the use of natural resources Resource management
Created by: marchscience
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