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Earth Sciences 21 Online
OpenStudy (anonymous):

The four giant gas planets that are made primarily of lightweight elements are... A. Mercury, Venus, Earth, and Neptune. B. Jupiter, Saturn, Uranus, and Neptune. C. Venus, Saturn, Uranus, and Neptune. D. Earth, Saturn, Neptune, and Venus.

OpenStudy (anonymous):

I will give a medal if helped. Thanks so much for your time

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