SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Near areas of tectonic plate subduction such as the Pacific’s Ring of Fire
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Areas with limestone formations and water flowing underground
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On the shores of oceans, especially those connected with the Pacific
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Anywhere there are slopes
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Detailed explanation-1: -Mass movement, often called mass wasting, is the downslope movement of a mass of surface materials, such as soil, rock or mud. This mass movement typically occurs along hillsides and mountains due to the influence of gravity and can happen very slowly or very quickly.
Detailed explanation-2: -Steep slopes and areas at the bottom of slopes or canyons; Slopes that have been altered for construction of buildings and roads; Channels along a stream or river; and. Areas where surface runoff is directed.
Detailed explanation-3: -Landslides and avalanches are among the major hydro-geological hazards that affect large parts of India besides the Himalayas, the Northeastern hill ranges, the Western Ghats, the Nilgiris, the Eastern Ghats and the Vindhyans, in that order, covering about 15 % of the landmass.
Detailed explanation-4: -Seismic tremors can trigger landslides on slopes historically known to have landslide movement. Earthquakes can also cause additional failure (lateral spreading) that can occur on gentle slopes above steep streams and riverbanks.
Detailed explanation-5: -Lahars. Lahars, also known as volcanic mudflows, are hot or cold mixtures of water, rock, sand, and mud moving down the flanks of a volcano and running away from it. Lahars look like fast-moving masses of wet concrete that carry tephra ranging in size from a few millimeters to more than 10 m in diameter.