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Which of the following produced significant amounts of heat during the early formation of earth, which started approximately 4.5 billion years ago? (select all that apply.) check all that apply radioactive decay in earth's interior exposure to the cosmic radiation from space collision and compression of materials by gravity sinking of the molten iron and nickel into earth's interior impacts of meteors and asteroids
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Which of the following produced significant amounts of heat during the early formation of earth, whi...
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