Notes and Study material for Exams
El Nino El Niño is the name given to the occasional development of warm ocean surface waters along the coast of Ecuador and Peru. When this warming occurs the usual upwelling of cold, nutrient rich deep ocean water is significantly El Niño normally occurs around Christmasand usually lasts for a few weeks to a few months. Sometimes … Read more
Importance of Science & Technology as an engine for national development- Industrial development & Urbanization Professor Freeman J. Dyson, of Institute of Advanced Studies, Princeton, in his book “Infinite in all Directions,” had this to say about Technology: “Technology is a gift of God. After the gift of Life, it is perhaps the greatest of … Read more
India was the first nation to launched a family planning programme in 1952. Though the birth rate started decreasing, it was accompanied by a sharp decrease in death rate, leading to an overall increase in Population.The early concept of population policy covered both mortality and fertility and did not exclusively focus on fertility. There was … Read more
Pandyan Contributions Economic contribution External trade was carried on between South India and Hellenistic kingdom of Egypt and Arabia as well as the Malay Archipelago. The author of the Periplus of the Erythrean Sea (75 A.D.) gives the most valuable information about the trade between India and the Roman Empire. He mentions the port of … Read more
Under the Constitution the financial Resources of the State are very limited though they have to do many works of social uplift under directive principles. In order to cope with their ever-expanding needs, the Central Government makes grants-in-aid to the States. Grant- in-aid to States , through it Central Government exercises a strict control … Read more
Minerals Minerals are defined as solid, inorganic, naturally occurring substances with a definite chemical formula and general structure. Almost all chemical Elements in the Earth’s crust are associated with at least one mineral. They vary in color, hardness, density, crystal form, crystal size, transparency, composition, location, and abundance. Some minerals are radioactive (uranophane), while others … Read more
The Tapestry of Economic Systems: A Comprehensive Guide The way a society organizes its economic activities is a fundamental aspect of its social structure. Economic systems, the frameworks that govern resource allocation, production, and distribution, are diverse and constantly evolving. Understanding these systems is crucial for comprehending global economic trends, navigating international trade, and formulating … Read more
The Grey Revolution: Unlocking the Potential of Mushroom Cultivation The world’s population is growing, and with it, the demand for food. Traditional agriculture faces increasing challenges, from climate change and resource depletion to land scarcity and environmental degradation. In this context, alternative food sources are gaining prominence, and among them, mushrooms stand out as a … Read more
Emergency Provisions: A Comprehensive Guide to Preparing for the Unexpected The world is a dynamic and unpredictable place. Natural disasters, pandemics, economic crises, and even man-made events can disrupt our lives and leave us scrambling for essential resources. In such situations, having a well-stocked emergency kit and a comprehensive plan can make the difference between … Read more