The two ancient Egyptian achievements that were most directly the result of their religious beliefs are:
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Construction of the pyramids - The pyramids were built as monumental tombs for pharaohs, reflecting the Egyptians' beliefs in the afterlife and the divine status of their rulers.
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Preserving the bodies of the dead - Mummification and other practices related to preserving the dead were carried out to ensure a successful journey to the afterlife, which was central to Egyptian religious beliefs.
So, the correct answers are construction of the pyramids and preserving the bodies of the dead.