Geography for Prelims

Zojila Tunnel

Zoji La Tunnel is a 14.2 km long road tunnel under Zoji La pass in the Himalayas between Sonmarg and Drass town in Kargil district of the Indian Union Territory of Ladakh, It is situated at an altitude of 11,578 feet on Srinagar-Kargil-Leh National Highway (NH-1A). The main objective of the project is to provide all whether connectivity to strategically important Leh region in J&K which at moment is limited to …

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El-Nino

El-Nino is a weather phenomenon, during which temperature at sea surface is warmer than normal sea-surface temperatures. El Nino is a warming of the Pacific Ocean between South America and the Date Line, centred directly on the Equator, and typically extending several degrees of latitude to either side of the equator. It accompanies high air surface pressure in the western Pacific. El Niño …

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Narmada River

 Narmada River: Narmada is the largest west flowing river of the peninsular region flowing through a rift valley between the Vindhya Range on the north and the Satpura Range on the south. It rises from Maikala range near Amarkantak in Madhya Pradesh. It drains a large area in Madhya Pradesh besides some areas in the states of Maharashtra and Gujarat. The river near Jabalpur (Madhya Pradesh) forms the DhuanDhar Falls. There are several islands in the estuary of the …

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Polymetallic Nodules

Polymetallic Nodules: Polymetallic nodules (PMN) are also known as manganese nodules. They are potato-shaped, largely porous nodules found in abundance carpeting the sea floor in the deep sea of the world oceans. Besides manganese and iron, they contain nickel, copper, cobalt, lead, molybdenum, cadmium, vanadium, titanium. Of these metals nickel, cobalt and copper are considered …

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