Answer:
concrete
Explanation:
Researchers think regolith on Mars could serve as a replacement for concrete components. The Mars rovers have used gas chromatography, mass spectrometry, and laser spectrometry to determine the composition of martian soil. Mars regolith is mostly silicon dioxide and ferric oxide, with a fair amount of aluminum oxide, calcium oxide, and sulfur oxide. The composition varies from place to place on the planet’s surface because of variability in asteroid collisions and the weathering by wind and water, in ancient oceans and in some modern water flows. But no spacecraft has returned to Earth with actual samples of the material.
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Jenna didn't know which package went to which person and instead of going back home to ask her mom which is which she gave her Great Aunt Sally a jersey that was supposed to be Joey's and she gave Joey the package that was supposed to be her Great Aunt Sally's.
In Of Wolves and Men, the author uses the word B. minutely (and also delicately) to describe the way in which the wolf inspects the crevice between the rocks.