Geography

A glance at the world map reveals that most of the desert region is on the western part of the continent for example. Mohave desert in North America, Atacama in Southern America, Namib, Sahara in Africa , Arabian in west Asia. The reasons for such homogeny are: The hot desert lie astride the Horse latitudesor … Read more

  The hill ranges of the Western Ghats, a global biodiversity hotspot, extend along the west coast of India from the river Tapti in the north to the southern tip of India. Their positioning makes the Western Ghats biologically rich and biogeographically unique – a veritable treasure house of biodiversity. The region has a spectacular … Read more

. Some of the major cropping systems are:  Sequential system Multiple crops are grown in a sequence using short duration crops and intense input management. In Maharashtra, a sequence of Rice, Beans and Ground nuts is  followed. It is the most common cropping system in India. Mixed cropping It refers to crop mixture of two … Read more

Ways: Diversification of export basket , instead of rice and sugar focus has to be on spices, cash crops. Improvement in agricultural productivity of cash crops to have competitive advantage. Most of the subsidies are cornered by rice, wheat, sugar which needs to be rationalised. Contract farming has to be encouraged. Infrastructure development, focus on … Read more

  The cost of recharge to sub-surface reservoir is lower than surface reservoirs. The aquifer serves as a distribution system also. No land is wasted for storage purpose and no population displacement is involved. Ground water is not directly exposed to evaporation and pollution. Storing water under ground is environment friendly. It increases the productivity … Read more

Some air movements are the result of the systematic pressure gradients that arise from latitudinal changes in the Earth’s surface temperature. One notable example is the Hadley Cell, a movement of warm air from the tropics that rises, flows toward the poles and then cools and sinks at around 30 degrees north and south of … Read more

Landslide is defined as the movement of mass of rock, debris or earth down a slope under the direct influence of gravity. It’s a natural disaster which takes place because of both natural and anthropogenic factors. Being at a great height,h imalyan region is quite prone to this disaster. Natural Factors Intensive rainfall : rainy … Read more

. Most of the metallic minerals in India occur in the peninsular plateau region in the old  crystalline rocks. Over 97 per cent of coal reserves occur in the valleys of Damodar, Sone, Mahanadi and Godavari.  Areas of high rainfall lack in soluble minerals like Limestone, Gypsum and Salt.  Northern Plains are poor in minerals … Read more

There are mountains, basins, plateaus, ridges, canyons and trenches beneath the ocean water too. These relief features found on the ocean floor are called Submarine Relief. The ocean basins are broadly divided into four major subdivisions. They are; Continental Shelf: They slope seaward from coast to a point where the slope becomes very steep. This shallow submerged extension … Read more

It is a deflecting force experienced due to rotation of earth. Because of Coriolis the air appears to turn towards its right in the northern hemisphere and towards its left in the southern hemisphere. The coriolis always acts in the perpendicular direction of the motion of air. It is zero at the equator and increases … Read more