Geography

China China ranks first in the world in coal production. Nearly 38 per cent of world’s coal output is from China. All types of coal are found, including anthracite, bituminous coal and lignite. Although coal occurs in every province of China, but its greatest concentration is in Shanxi and Shaanxi (Shansi and Shensi).   USA … Read more

  S.No. Himalayan drainage Peninsular drainage 1. Perennial in nature. Seasonal in nature 2. Both snow fed and monsoon n fed Monsoon fed 3. Voluminous Less voluminous 4. Very large command area Less Command area 5. Himalayan river exhibits antecedent character Consequent character is exhibited 6. All Himalayan rivers form delta at the mouth Form … Read more

India covers 3,214 km from North land to South land and 2,933 km from eastwards to westwards. India has the land frontier of 15,106.7 km and a coastline of 7,516.6 km.  Sri Lanka, Thailand, Pakistan,  Bangladesh, Myanmar, Maldives, and  Indonesia are the nations with which India accords marine borders.   India is also surrounded in the … Read more

The main achievements of Green Revolution may be summarized as under: The production and productivity of wheat, rice, maize, and bajra has increased substantially. India has become almost self-sufficient in the matter of staple foods. The double cropped area has increased; thereby intensification of the Indian agriculture has increased. In the areas where Green Revolution … Read more

. India is a tropical country and has around 300 days availability of sunlight which is one of the highest in the world. Germany is a sub-tropical country, now produces almost 40% of its energy from renewable power. India has huge potential.  Solar power has one unique advantage that it can be used to supply … Read more

a) Barrier reef: Barrier reefs are similar to fringing reefs in that they also border a shoreline; however, instead of growing directly out from the shore, they are separated from land by an expanse of water. This creates a lagoon of open, often deep water between the reef and the shore. b) Atolls: Atolls are … Read more

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

Storage of food grains in open space Normally storage in open in the form of CAP is supposed to be resorted to during peak procurement seasons. The storage in the CAP should not be more than a year with at least one turn-over of the stock every 6 months to retain the quality of the … Read more

Dams and flood control The efficiency of dams to withhold floods has always been put to question. Critics have also termed dams as harbinger of floods claiming that the essential scientific assessment for consistent release of water to avoid build up is rarely done. Absence of a standard operating procedure for releasing water from the … Read more

The continental drift hypothesis was developed in the early part of the 20th century, mostly by Alfred Wegener. Wegener said that continents move around on Earth’s surface and that they were once joined together as a single supercontinent. While Wegener was alive, scientists did not believe that the continents could move. Alfred Wegener proposed that … Read more