作业帮谁有月球和地球之间联系的英文介绍初二水平,请快回答
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谁有月球和地球之间联系的英文介绍初二水平,请快回答
谁有月球和地球之间联系的英文介绍
初二水平,请快回答
谁有月球和地球之间联系的英文介绍初二水平,请快回答
Origin and history
The inclination of the Moon's orbit makes it implausible that the Moon formed along with the Earth or was captured later; its origin is the subject of some scientific debate.
Early speculation proposed that the Moon broke off from the Earth's crust due to centrifugal force,leaving an ocean basin (presumed to be the Pacific Ocean) behind as a scar.This concept requires too great an initial spin of the Earth and the presumption of a Pacific origin is not compatible with the geological standard model,the theory of plate tectonics.Others speculated the Moon formed elsewhere and was captured into Earth's orbit.Two of the other theories include the coformation or condensation theory and the impact theory,which speculates that the Moon formed from the debris that resulted from a collision between the early Earth and a planetesimal.