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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Dear (blank),
I want you to know i deeply care about you and your health and with you eating so much junk food i thought it would be good to tel you a few things. Junk food leads to high Cholesterol levels high sugar levels and increases the rate of obesity. Obesity can also lead to multiple different health problems that are irreversible. please do start eating healthy.
Paine was right in his conviction that the pilgrims ought to be liberated from the ruler's standard Our chains are fashioned! Their clanging might be heard on the fields of Boston.
<h3>What is message behind the excerpt?</h3>
An objective message is a message where the essayist states real factors yet doesn't impart his/her own convictions or feelings or endeavor to persuade perusers to trust his/hers point of view.
A profound message is the opposite - it contains the designer's viewpoints, convictions, or opinions. The essayist can yet doesn't have to endeavor to persuade the perusers to trust him/her.
The underlying three sentences are occasions of veritable decrees. They state real factors, something that truly happened.
The last, fourth, sentence contains a conviction. Someone feels that Paine was correct, but someone else could struggle. That is the explanation the given sentence contains theoretical language.
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New ideas can get into your head and take root and some people will start thinking that e new idea is better
