Tsunamis are frequently observed along the Pacific ring of fire, particularly along the coast of Alaska, Japan, Philippines, and other islands of Southeast Asia, Indonesia, Malaysia, Myanmar, Sri Lanka, and India etc.
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Distinguish between: (i) River levee and embankments (ii) Landslide and mass wasting
(i) River levee and embankments: River levees are the natural embankments of the river, while the embankments are built by man.
(ii) Landslide and mass wasting:
Landslide: A landslide is the rapid sliding of bed -rock or regoliths. These are caused by earthquake or sudden rock failures. Landslide is a hazard.
Mass wasting: Natural removal of soil and rock from slopes is known as mass wasting.
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