Tnpsc and Upsc Notes Pdf
Pravin Babu R Composition of Population Composition of Population includes sex ratio, literacy rate, age pyramids etc. Sex Ratio The sex ratio is the ratio of males to females in a population. Sex Ratio Sex ratio is the ratio of males to females in a population. Qatar is the number one among countries with the highest male to … Read more
Population A group of individuals of the same species that occupies a particular geographic area. People The member of a particular nation, community, or ethnic group Crude Birth Rate or Natality Rate The number of live births per thousand people in a year. Net Migration Rate N = 1000 × (I – E) / P … Read more
Regional division on the basis of growth rate On the basis of the growth rate of a population the world can be divided into the following three types of areas: Areas of Low Growth Rate Developed countries like the US, Canada, Japan, Australia, New Zealand, and countries of western Europe have a low growth rate … Read more
When agriculture was introduced about 8000 to 12000 years ago, the population was small, roughly about 8 million. In the first century (C.E) it was below 300 million. Causes of Population Explosion World trade expanded during the 16th and 17th centuries, setting the stage for rapid population growth. During, the dawn of the Industrial revolution … Read more
What are Current events? Current events include important political or social events that happen right now. Also, it includes those events and issues of interest currently found in the news. What are the topics to cover in current events for the Tnpsc, Upsc and other service exams? History – Revenue system, Land reforms Index and … Read more
Human Resource Development The term ‘Human Resource Development or HRD’ is used in different contexts and with various meanings. According to F.H.Harbison, human resources are “the energies, skills, talent, and knowledge of people which are, or which potentially can or should be applied to the production of goods or the rendering of useful services”. In … Read more
Fruits, vegetables, and flowers are horticulture crops. India is the second-largest producer of Horticulture crops. Apple is mostly produced in Himachal Pradesh, Jammu and Kashmir, and Uttarakhand. Banana cultivation is mainly in Tamil Nadu and Maharashtra. Orange cultivation is mainly in Maharashtra, Uttarakhand, Himachal Pradesh, Jammu and Kashmir, Tamil Nadu, and Karnataka. Grape cultivation is … Read more
One source of income for the farmer helps a lot during crop failure. It contributes 4% of GDP. India contributes 11.6 % of livestock in the world, which is number one. i.Cattle Cattle constitute 37.3 percent of the livestock population in India. India has second-largest cattle population after Brazil. Madhya Pradesh tops with 10.3 % … Read more
Commercial crops in India Commercial crops are crops that are planted mainly for the purpose of selling on the market to make exports and to make high profits. They are also called cash crop or profit crop that is grown to sell for profit. These crops are usually purchased by third parties such as agents, … Read more
Crops in India Farming in India is mostly food crops. Foods include Rice, Jowar, Wheat, Bajra, Maize, Barley, Ragi, Gram, and Tur. Rice Rice is an indigenous crop in India and India is the second-largest rice producer in the world after China. It is mainly grown in tropical areas, where the mean temperature is 24 … Read more