Notes and Study material for Exams
Surface tension Surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. Because of this property, certain insects can stand on the surface of water. … Read more
Pressure: The Unsung Hero of Weather and Climate The air we breathe, seemingly invisible and weightless, exerts a powerful force upon us and the planet. This force, known as atmospheric pressure, is a fundamental element shaping our weather and climate. While often overlooked, pressure plays a crucial role in driving winds, influencing precipitation patterns, and … Read more
Ministries and Departments of the Government Ministries And Departments of Government of India: Ministry of Home Affairs Department of Home Department of Border Management Department of States Department of Internal Security Department of Official Language Department of Jammu & Kashmir Affairs Ministry of Chemicals and Fertilizers (Including Pharmaceuticals) Department of Pharmaceuticals Department of Fertilizers Department … Read more
Earth: A Cosmic Oasis of Life and Wonder Our planet, Earth, is a vibrant and dynamic world, teeming with life and sculpted by a complex interplay of geological, atmospheric, and biological processes. It is a unique oasis in the vast expanse of space, harboring a diverse array of ecosystems and supporting an astonishing array of … Read more
The Rate of a Chemical Reaction The rate of a chemical reaction can be defined as the amount of the reaction which occurs in unit time. The rate of a reaction is measured by choosing certain properties of the reaction which will indicate how far the reaction has gone, and whose magnitude can be observed … Read more
Safe drinking water is the birthright of all humankind – as much a birthright as clean air. The majority of the world’s Population, however, does not have access to safe drinking water. This is certainly true in most parts of Africa and Asia. Even in relatively advanced countries such as India, safe drinking water … Read more
Soap – Characteristics And Uses Soaps are excellent cleansing agents and have good biodegradability. A serious drawback which reduces their general use, is the tendency for the carboxylate ion to react with Ca+ and Mg+ ions in hard water. The result is a water insoluble salt which can be deposited on clothes and other surfaces. These … Read more
The Rate of a Chemical Reaction The rate of a chemical reaction can be defined as the amount of the reaction which occurs in unit time. The rate of a reaction is measured by choosing certain properties of the reaction which will indicate how far the reaction has gone, and whose … Read more
Means of Irrigation and its importance India is an agricultural country. About seventy per cent of its people depend on agriculture. Watering is essential for the crops. Agriculture is not possible without water. We have to depend on rains for water for our fields, but we do not get rains throughout the year. India … Read more
Water Resources in India India accounts for about 2.45 per cent of world’s surface area, 4 per cent of the world’s Water Resources and about 16 per cent of world’s Population. The total water available from Precipitation in the country in a year is about 4,000 cubic km. The availability from surface water and … Read more