Geography

Promote “Blue Revolution” through a multipronged approach and introduction of alternate species. Develop a policy framework for allotment of marine areas and large reservoirs for cage culture through fi shermen cooperatives/private participation or by consortium. Establish SPF Brood Stock Multiplication centres and aquatic quarantine centres for L.vannamei for production and supply of SPF brood stock … Read more

On 23 December 2005, the Government of India enacted the Disaster Management Act, which envisaged the creation of National Disaster Management Authority (NDMA), headed by the Prime Minister, and State Disaster Management Authorities (SDMAs) headed by respective Chief Ministers, to spearhead and implement a holistic and integrated approach to Disaster Management in India. NDMA Vision: … Read more

They are places on Earth that are so cold that water is frozen solid. These areas of snow or ice, which are subject to temperatures below 32°F for at least part of the year, compose the cryosphere. The term “cryosphere” comes from the Greek word, “krios,” which means cold. Ice and snow on land are one part … 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

It is a kind of irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of the plants, either onto the soil surface or directly onto the root zones, through a network of valves, pipes , emitters etc. It is done through narrow tubes that deliver water directly to … Read more

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 latitudes … Read more

Horticulture is the branch of agriculture concerned with intensively cultured plants directly used by man for food , for medicinal purpose or for aesthetic gratification.Horticulture is the science and art involved in the cultivation, propagation, processing and marketing of ornamental plants, flowers, turf, vegetables, fruits, and nuts.   The following are the benefits attached with … Read more

  Cape of Good Hope, rocky promontory at the southern end of Cape Peninsula, Western Cape province, South Africa. It was first sighted by the Portuguese navigator Bartolomeu Dias in 1488 on his return voyage to Portugal after ascertaining the southern limits of the African continent. One historical account says that Dias named it Cape … Read more

Sand miningis a practice that is used to extract sand, from various environments, such as beaches, inland dunes and dredged from ocean beds, and river beds of deltaic regions. The mining is in operation in all the continents of the Globe. Environmental problems occur when the rate of extraction of sand, gravel and other materials … Read more

Shale gas refers to natural gas that is trapped within shale formations. Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas. Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of shale gas that were previously uneconomical to produce.  Typical components of oil shale gas are usually methane, … Read more