Assertion: terrestrial planet's density | /r/HasProperty | density
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Source sentences:
text: When we take into account how the weight of overlying layers compresses the interiors of the planets to different extents (greatest for Earth, least for Mercury), we find that the average uncompressed densities of the terrestrial worldsthat is, the densities they would have in the absence of any compressiondecrease steadily as we move farther from the Sun.