Notes and Study material for Exams
Preparation of nitrogen Nitrogen is found in both free and combined states. It occupies 78.07% by volume. Nitrogen can be prepared: By heating copper in air: Firstly, air is passed through lime water and then concentrated sulphuric acid to make the air free from carbon dioxide and moistures respectively. The air contains only nitrogen and … Read more
Organic Farming system in India is not new and is being followed from ancient time. It is a method of farming system which primarily aimed at cultivating the land and raising crops in such a way, as to keep the Soil alive and in good Health by use of organic wastes (crop, animal and farm … Read more
The Rise of Bio-fertilizers: A Sustainable Solution for Agricultural Growth The world’s population is growing, and with it, the demand for food. This puts immense pressure on agricultural systems to produce more food while simultaneously facing the challenges of climate change, resource depletion, and environmental degradation. Conventional fertilizers, while effective in boosting crop yields, come … Read more
First World War Background It was a result of growing inter-imperialist rivalries, growing chauvinism, antagonism and conflicts within Europe, formation of alliances and secret pacts, growing militarization, feverish preparations for war, were some of the marked features that harbingered war. There had been a number of crises which were temporarily resolved, but led to deep … Read more
Biotechnology is defined as the industrial application of living organisms and their biological processes such as biochemistry, Microbiology, and Genetic engineering, in order to make best use of the Microorganisms for the benefit of mankind. Modern biotechnology provides breakthrough products and technologies to combat debilitating and rare diseases, reduce our environmental footprint, feed the hungry, … Read more
Mission COVID Suraksha: India’s Drive for Vaccine Self-Reliance The COVID-19 pandemic, a global health crisis of unprecedented scale, exposed vulnerabilities in the world’s healthcare systems, particularly in vaccine production and distribution. India, with its vast population and limited access to affordable vaccines, found itself at a critical juncture. Recognizing the urgency of the situation, the … Read more
The Foundation of a Healthy Environment: A Comprehensive Guide to Drainage Systems Drainage systems are the unsung heroes of our built environment, silently working behind the scenes to ensure the smooth flow of water and prevent its detrimental effects. From the intricate network of pipes beneath our streets to the sophisticated drainage solutions in our … Read more
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Oceans tides An ocean tide refers to the cyclic rise and fall of seawater. Tides are caused by slight variations in gravitational attraction between the Earth and the moon and the Sun in geometric relationship with locations on the Earth's surface. Tides are periodic primarily because … Read more
The Symphony of Soil: Unveiling the Secrets of Soil Formation Soil, the foundation of life on Earth, is more than just dirt. It’s a complex, dynamic ecosystem teeming with life and a vital component of our planet’s intricate web of interconnected systems. Understanding how soil forms, its intricate composition, and the factors that influence its … Read more
Biological Weathering: The Silent Sculptor of Earth’s Landscapes The Earth’s surface is a dynamic tapestry, constantly reshaped by the relentless forces of nature. While physical weathering, driven by the power of wind, water, and ice, is often the first to come to mind, another, less visible force plays a crucial role in shaping our planet: … Read more