Tnpsc and Upsc Notes Pdf
Pravin Babu R 
The periodical rise and fall of the sea level, once or twice a day, mainly due to the attraction of the sun and the moon, is called a tide. The movement of water caused by meteorological effects (winds and atmospheric pressure changes) are called surges. Surges are not regular like tides. The study of tides … Read more
Ocean waves Sea Waves are mostly caused by wind. The wind drive waves are called the surface and are formed by the friction between wind and surface water. When the wind blows across the surface of the ocean, the continuous disturbance forms a wave crest. These other types of sea waves also are discussed below. … Read more
The ocean water is dynamic. Its movements are influenced by Physical characteristics and external forces. Causes of ocean water movement such as Waves, Tides, and Ocean Currents are Temperature, salinity, density, and external forces such as sun, moon, and winds. Difference between waves tides and ocean currents There are two types of movement in Ocean … Read more
Baking Powder Baking powder is a dry leavening agent used in baking to produce a light and fluffy texture. It is a mixture of sodium bicarbonate (NaHCO3), an acid, and a starch. The acid and starch help to keep the sodium bicarbonate from reacting until it is mixed with a liquid, such as water or … Read more
The latitude and longitude coordinates of India are 20.5937° N, 78.9629° E. What is latitude and longitude? Latitude and longitude are a set of lines used to describe the location of any place on earth. The Earth is not a perfect sphere its polar radius and equatorial radius are not the same. There is bulging … Read more
The measurement of the degree of hotness or coldness of ocean water is referred to as ocean temperature. Temperature is normally measured in the units of degrees Celsius by thermometers. The major source of heat energy for ocean water is the radiation from the sun. Just like land, the ocean’s water gets heated up by … Read more
International date line and its coordinates Definition It is an imaginary line dividing the surface of the earth, which runs from the North Pole to the South Pole and demarcates the border between one calendar day and the next. It serves as the “line of demarcation” between the two calendar days. Prime meridian Is the … Read more
Bahmani Kingdom Architecture Bahmani sultans developed an architecture called Persianate-Indo-Islamic. It was well adapted by the Sultanates of the Deccan. Kalaburagi, the first capital of Bahmani is the place where Jami Masjid was built in 1367. It has perhaps the Bazaar Street in the fort, it is one of the earliest of its kind in … Read more
History of education in Tamilnadu Tamil Nadu is an educationally progressive state in the Country. In terms of literacy, it is one of the top states in India, which is only next to Kerala and Maharashtra. The and males are more than the national average. 2001 Census The National Policy on Education (NPE) 1986 of … Read more
Nationalisation of Banks Nationalisation of banks means It is an act of taking a bank and its assets owned by the private sector into the public ownership of a national government by purchasing a majority stake that is more than 50% owned by the government. Reason of Nationalisation of Banks After the Independence, the Government … Read more