A landslide is the movement of rock, earth or debris down a sloped section of land. Landslides are caused by rain, earthquakes, volcanoes or other factory that make the slopes unstable.
Landslides have three major causes : geology, morphology and human activities. Geology refers to characteristics of the materials itself. The earth or rock might be weak or fractured, or different layers may have different strengths and stiffness. Morphology refers to the structure of the land. For example, slopes that lose their vegetation to fire or drought are more vulnerable to landslides. Human activitiy, such as agriculture and construction, can increase the risk of a landslide. Irrigation, deforestation and excavation can read destabilize or weaken a slope.
A landslide can involve rock, soil, vegetation, water or some combination of all these. A landslide caused by a volcanos can also contain hot volcanic ash and lava from the eruption. A landslide high in the mountains may have snow and snowmelt.
Adopted from: https://wws.nationalgeographic.org/encyclopedia/ landslide/ (30th November 2018)
From the text, it can be concluded that.
landslides occur because of human and natural factors
land with vegetation are vulnerable to landslides to occur
landslides can involve only kinds of rock and soil
landslides only happen in mountainous regions
Berdasarkan teks bacaan di atas, pada paragraf pertama dijelaskan bahwa “landslide are caused by rain, earthquakes, volcanoes or other factors that make the slope unstable” Lalu kalimat lainnya “landslides have three major causes: geology, morphology and human activites” dan kalimat “human activity, such as agriculture and construction, can increase the risk of a landslide”. Maka dapat disimpulkan bahwa “landslides occur because of human and natural factors”. Sementara pernyataan lainnya masih kurang tepat dengan informasi dalam teks bacaan tersebut.
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