1.

(i) Examine the plate boundaries in the given map and write the names of the plates.(ii) On which side of the continents of North and South America are the earthquake-prone zones located? Which mountains are located there?(iii) In which mountainous zone in Asia does the earthquake-prone zone lie?(iv) In which region are the volcanoes concentrated in Africa? What could be the reason?(v) Correlate earthquake regions, distribution of volcanoes and plate boundaries.

Answer»

(i) North American Plate, South American Plate, Indo Australian Plate, African Plate, Eurasian Plate, Pacific Plate, Antarctic Plate, Arabian Plate, Nazca Plate, Cocos Plate, Caribbean Plate, Scotia Plate, Arabian Plate and Somali Plate.

(ii) The earthquake-prone zone is located on the western side of North and South America. Rockies and Andes mountain ranges are located there.

(iii) The Himalayan mountainous zone of Asia is an earthquake-prone zone.

(iv) Volcanoes are concentrated in the eastern part of Africa along the Rift Valley region as this region is located on plate boundaries.

(v) Plate boundaries are directly related to areas of earthquakes and volcanoes. Most of the volcanoes are located on the plate boundaries. Similarly, the earthquake zones are also seen in the border areas.



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