Geography

Earth magnetism is the property of earth behaving like a dynamo and showing magnetic property just like that of a magnetic bar. There are various theories behind this property. There is no valid reason for the cause of earth’s magnetism or why earth has giant magnetic field but there are some theory related to earth’s … Read more

Tsunami is a Japanese word for “Harbour wave”. They are also known as seismic sea waves. They are very long-wavelength water waves in oceans or seas. They are commonly referred to as tidal waves because of long wavelengths, although the attractions of the Moon and Sun play no role in their formation. They sometimes come … Read more

Agroforestry is defined as a land use system which integrates trees and shrubs on farmlands and rural landscapes to enhance productivity, profitability, diversity and ecosystem sustainability. It is a dynamic, ecologically based, natural resource management system that, through integration of woody perennials on farms and in the agricultural landscape, diversifies and sustains production and builds … Read more

Geographical distribution: The cool temperate eastern margin climate is an intermediate type of climate between the British and the Siberian type of climate. It has features of both the maritime and continental type of climate. The laurentian type of climate is found only in two regions. One is north eastern North America and the other … Read more

Flood is a natural disaster which can never be avoided, India being one of the worst flood hit tropical country in the world which causes huge economic and emotional losses. We cannot afford to ignore flood but we can manage it. Around 12% of the total area i.e. 40 million hectare is prone to flood. … Read more

Major irrigation projects The Lower Bhavani Project  The Lower Bhavani project was one of the British achievements in the Tamil country. For the preliminary works regarding the Lower Bhavani project that government appointed Sir. Charles Innes in 1906 as the Special Revenue Officer instructing him to report on the various aspects of the scheme. After … Read more

As urban areas develop, changes occur in their landscape. Buildings, roads, and other infrastructure replace open land and vegetation. Surfaces that were once permeable and moist become impermeable and dry. These changes cause urban regions to become warmer than their rural surroundings, forming an “island” of higher temperatures in the landscape. Heat islands occur on … Read more

High and low tides are caused by the Moon. The Moon’s gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the Moon and the side farthest from the Moon. These bulges of water are high tides. As the Earth rotates, your region … Read more

Inland waterways is an important mode of transport for any economy. Inland water transport contribute just 1% of the total freight and as the data suggest it is underutilised as in other countries the proportion of freight is relatively high. There are challenges in the development of Inland waterways in India and they are as … Read more

The plains are often termed as the ‘Granary of India’. The soils of the plains are one ofthe most fertile soils of India. They are being devoted to cereal and non – cereal crops. They have rich underground water table. The underground water is utilized with thehelp of wells and tube wells for irrigation, industrial … Read more