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:
Thousands of lives have been lost to erupting and volcanos. Many active volcanoes in history have also caused the destruction of human civilizations, and the earth. The eruption of the Indonesian volcano Krakatau in 1883 did extensive damage to the neighboring islands. The power of the volcano brought huge waves down onto the people, taking the lives of nearly 36,000. Other active volcanos in Indonesia have been recorded to cause severe damage to the climate as well as the life there. The ash and dust from the volcano effected the sunlight, destroying plant life and wrecking the natural balance of the environment. Other volcanic affects, such as mud flows, lava, and floods have also played a part in the fall of our ecosystems. In Indonesia, 1816 was named the year with no summer due to large volcanic eruptions. These eruptions were so severe, they had effect on other country’s, thousands of miles away.
Explanation:
Answer:
A
Explanation:
showing the use of a slingshot and using the word only shows this
Answer:
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