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Lord Kelvin Argued That Based on the Temperature of Rocks

Question 37

Multiple Choice

Lord Kelvin argued that based on the temperature of rocks, Earth could not be as old as some geologists thought. What turned out to be wrong with his reasoning?


A) He claimed that the temperature of surface rocks should be used in calculations, but these calculations were shown to be unreliable.
B) He did not realize that the planet's interior was constantly changing.
C) The upper layers of Earth are cooler than Kelvin realized.
D) all of the above

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