The Three Principal Sources of the Internal Heat of Terrestrial Planets Are?

Answer

There are three principal sources of internal heat of terrestrial planets. One source of heat would be accretion. The final two are differentiation and radioactivity.
Q&A Related to "The Three Principal Sources of the Internal..."
The three principal internal sources of heat for the terrestrial planets are; accretion, differentiation, radioactivity. The first two mainly occur during the planets formation. Accretion
http://wiki.answers.com/Q/What_are_the_three_princ...
Convection, conduction, and
http://www.chacha.com/question/what-are-the-3-prin...
Temperature, pressure, and radioactive decay Since only one answer includes radioactive decay, e) but accretion, differentiation, conduction, and convection are not heat sources Source
http://answers.yahoo.com/question/index?qid=200904...
Radioactivity. It is thought that differentiation (heavy elements sinking to the core, kinetic and gravitational potential energy to thermal energy) is long over with as is the majority
http://answers.yahoo.com/question/index?qid=200807...
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