When building some infrastructure, in this case a railway, that is close to a mountain slope, it is necessary to cover the mountain slope with a wire mesh.
The biggest reason for that is the safety.
The steep mountain slopes can be very dangerous, because the rocks undergo the natural processes of weathering and erosion, which causes the rocks to break up and fall downwards. The railway can be locked in that way because there will be rocks on it, so the trains will not be able to pass further. But what is more concerning is that rocks may start falling directly on the train itself, or on the railway but when the train is passing through, and can cause a tragedy. The train may get pushed of the railway, or the rocks may knock it down or get through the windows, so lot of lives can be lost, as well as lot of damage will be done too.
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Any organic material used by humans can be considered as a natural resource. Natural resources include oil, coal, natural gas, metals, stone, and sand. Air, sunlight, soil, and water are other natural resources.
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hope i helped
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Apartheid was used by South Africa. Apartheid was a political system that was active ruing the time when the white minority ruled the country. It focused primarily on the skin color of people and discriminated non-whites. It ended in the early 1990s. Segregation existed in South Africa for a long time before the 20th century but with apartheid it became institutionalized.
It looks like you should draw where the moon is orbiting the earth and wheee the earth is relative to the sun during that tide.
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I think for number 1 the answer is c.herd llamas and alpacas and for 2 I think the answer is B. Not sure about the last question though. Hope this helps!
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