What is Tsunami? Write down its characteristics.

Tsunami meaning “harbour wave” It is a series of extremely long waves caused by a large and sudden displacement of the ocean due to earthquake, volcanic eruptions etc. When they reach the coast, they can cause dangerous coastal flooding and powerful currents that can last for several hours or days. Characters of Tsunami waves are … Read more

Urbanisation

Introduction Urban areas have been recognized as “engines of inclusive economic Growth”. Of the 121 crore Indians, 83.3 crore live in rural areas while 37.7 crore stay in urban areas, i.e approx 32 % of the Population. The Census Of India, 2011 defines urban settlement as :- All the places which have Municipality, corporation, Cantonment Board … Read more

What is shale gas and fracking? Problems associated with shale gas extraction.

Shales are fine-grained Sedimentary Rocks formed of organic-rich mud at the bottom of ancient seas.Subsequent sedimentation and the resultant heat and pressure transformed the mud into shale and also produced natural gas from the organic matter contained in it. Over long spans of geologic time, some of the gas migrated to adjacent sandstones and was trapped in … Read more

Give an account for the following: (map based questions) a) Great lakes b) Lake Baikal c) Lake Tanganyika d) Aral sea

(a)Great lakes  Great Lakes of North America are a series of interconnected freshwater lakes which connect to the Atlantic Ocean through the Saint Lawrence Seaway.Consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario . Superior, Huron, Michigan, Erie, and Ontario [In the order of largest to smallest].Lake Superior is the largest continental lake in the … Read more

What is Mixed cropping? What is the criteria for the selection of crops during mixed cropping? Write down the advantages of mixed cropping? (science)

The practice of cultivating two or more crops simultaneously on the same piece of land is called mixed Cropping. During Mixed cropping, if one crop faces adverse conditions or pathogen attack then the other crop can be saved.The basic objective in mixed cropping is to minimize the risk and insure against the crop failure due to … Read more

To cope with climate challenge and to develop resilience of Indian agriculture covering crops, livestock and fisheries to climatic variability ICAR has started NICRA. Discuss the features of this project.( schemes)

Climate change is inevitable. The best strategy to deal with Climate Change is adoption of practices to make our farming more resilient. ICAR has launched a Network of project called NICRA. It stands for National innovation on climate resilient agriculture. The salient features of NICRA are as follows:   It takes into account the critical … Read more