ES, EARTHQUAKE ZONES AND VOLCANOES
(1) Examine the plate boundaries in the given map and write the names of the plates.
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(2) On which side of the continents of the North and South America are the earthquake prone zones located?
Which mountains are located there?
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(3) In which mountainous zone in Asia does the earthquake-prone zone lie?
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(4) In which region are the volcanoes concentrated in Africa? What could be the reason?
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(5) Correlate earthquake regions, distribution of volcanoes and plate boundaries.
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Answer:
2. The new results indicate that over 160 million people (or about a third of the total population of South America) live in areas with significantly elevated seismic hazard
3. The region of Kashmir, the Western and Central Himalayas, North and Middle Bihar, the North-East Indian region, the Rann of Kutch and the Andaman and Nicobar group of islands fall in this zone. Generally, the areas having trap rock or basaltic rock are prone to earthquakes.
4. Most African volcanoes result from hotspots, the rifting in East Africa, or a combination of the two.
5. For example, most earthquakes are along the edges of tectonic plates. This is where most volcanoes are too. However, most earthquakes are caused by the interaction of the plates not the movement of magma . Most earthquakes directly beneath a volcano are caused by the movement of magma.
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