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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Answer:
You could write a poem talking about the benefits and detriments of eating those foods or you could write one about how long it would take for those foods to expire.
1. A
2. D
3. D
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Answer:
It is either A. She is disappointed with her assignment. OR B. She is suffering from physical discomfort.
