Notes and Study material for Exams
The Earth’s Magnetic Shield: A Journey into Geomagnetism The Earth, our home planet, is not just a rocky sphere floating in space. It possesses a hidden, yet vital, force field: the geomagnetic field. This invisible shield, generated deep within the Earth’s core, protects us from the relentless barrage of charged particles emanating from the Sun, … Read more
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> : Types, distribution and their impact:- Earthquake:- The study of seismic waves provides a complete picture of the layered interior. An earthquake in simple words is shaking of the earth. It is a natural event. It is caused due to release of energy, which generates waves … Read more
Science & TechnologyFor Notes Click on the topics – Basics of Everyday Science. –Space Technology including Satellites. – Defence Technology. – Nanotechnology. – Human body, Food and Nutrition, Health care. – Environmental and Ecological Changes and its Impacts. – Biotechnology and Genetic engineering. – agriculture,
Remote sensing- GIS and its application Remote Sensing Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on-site observation. In current usage, the term “remote sensing” generally refers to the use of satellite- or aircraft-based sensor technologies … Read more
Biodiversity and conservation Biodiversity, or biological diversity, is the variety of all life forms.Sum total of all the variety of living organisms on earth constitute biodiversity. There are three Levels of Biodiversity: Genetic diversity—the variety of genetic information contained in individual Plants, animals and micro-organisms Species diversity—the variety of species ecosystem diversity—the … Read more
Petroleum, natural gas, coal, nitrogen, uranium and water power are examples of conventional sources of energy. They’re also called non-renewable sources of energy and are mainly fossil fuels, except water power. Rising Growth of Population has created a tremendous pressure on the conventional Resources of energy and thus the Concept of Sustainable Development get prominent … Read more
Biotechnology in agriculture For about 10,000 years , farmers have been improving wild Plants and animals through the selection and breeding of desirable characteristics. This breeding has resulted in the domesticated plants and animals that are commonly used in crop and Livestock agriculture. In the twentieth century, breeding became more sophisticated, as the traits that … Read more
Buffon’s Theory: A Legacy of Curiosity and Innovation Georges-Louis Leclerc, Comte de Buffon, was a towering figure in the history of natural history. His monumental work, Histoire naturelle, published in 36 volumes between 1749 and 1788, revolutionized the way people understood the natural world. While Buffon is best known for his contributions to zoology and … Read more
Purusharth The Hindu scriptures declare four goals in human life and they are called the purushartha. The term purushartha not only denotes what the objectives of life should be but it also means what the objectives of life are as the result of the psychological tendencies of the individual. The purushartha consists of dharma, Artha, … Read more
In India, at present forest areas cover about 76.5 million hectares of land, which is about 23 per cent of the total geographical area. It ranges from about 87 per cent in Andaman & Nicobar Islands to only about 4 percent in Haryana making to range difference of 83 percent. According to our National … Read more