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:
For each great thing, there is a bad counterpart. There is a small price to pay for everything.
The answer is it faded away
I believe the answer is
B. This pamphlet calmly disputed the claims that had been made in favor of slavery and provided ordinary citizens and abolitionists with arguments explaining why slavery was wrong.
D)American flags are waved down Peachtree Street, and nearly everywhere red, white, and blue is seen.
