air shafts were necessary (even though the dead pharaoh was already dead and not breathing) because..?

For Construction of the Pyramids

Explanation:

Explaination 1- the shafts pointed to Orion's Belt during the period of the construction of the Giza pyramid complex. It is thought that these openings were perhaps "air vents" for mummies or built to point to certain stars at the date of the pyramids construction.

Explaination 2- Some experts believe that they were built to provide ventilation for the people working inside the pyramid while it was being built. Other experts believe that these shafts had a religious purpose because they are directed towards certain stars. This air shaft is directed towards the northern polar stars.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

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explanation:

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