Techniques to Improve Agricultural Productivity   Tillage, irrigation, use of modern machines and ‘agricultural tools, pest control, good quality seeds and fertilizers are some of the important application to improve agricultural productivity. To feed the projected population of the mid-21st century, agricultural efficiencies would have to be far greater than is currently in the case of most countries. Agricultural productivity can take place only if technologies are greatly improved and substantial...

Genetic Engineering Genetic engineering is a term applied to laboratory techniques for the genes of an organism. A gene is a cell that controls a particular quality of leaving thing that has been passed from its parents. Genetic engineering is a science of removing, adding or replacing genetic unit to achieve permanent and hereditary changes in animals and plants. Gene surgery, manipulation, transplantation, therapy and intervention arc the terms used with...

Laser and Its Uses in Industry and Medicine   A laser is a device that strengthens and intensifies light. It gives out light in which all the waves change direction and strength together, typically producing a powerful beam of light. This beam of light can be used for cutting metals, in performing medical operations, etc. It produces sharp and intense directed beam of light. Laser light is directional and it travels...

History of Science and Its Characteristics   Science is knowledge about the structure and behaviour of the physical and natural world based on facts that can be proved through experiments. The history of science is the interaction between science and society that began in the primitive human society. It led its way through different ages that have been seen in different forms of society. Modern day science is an organized and...

Nature and Characteristics of Family   Family is a social institution comprising man and woman with their children and other relatives. Today, with the coming up of nuclear family system the meaning of family has changed. Nuclear family comprises husband, wife and their natural or adopted children. Family is more or less a healthy association of husband and wife with or without children. Most of the people in India have no...

Juvenile Delinquency Juvenile delinquency, is also known as, juvenile offending’. It involves participation in illegal behaviour by minors. Most legal systems such as juvenile detention centers and courts suggest specific procedures for dealing with juveniles. Juvenile delinquency refers to disruptive, or illegal behaviour by children or teenagers. A young person who is yet not an adult and who is guilty of committing a crime is called a juvenile delinquent’. A social...

Demographic Process Influencing Sex and Age Composition of Population   Any society is made up of people. The structure and features of population indicate socio-cultural conditions of any given society. Structure of population is based on sex, age, mental status, race, socio-economic condition, religion, etc. Population not only helps us to study the ‘changes in the characteristics of population but also takes into consideration the distribution of these characteristics. Demographic study...

Human Rights    Right is not what someone gives us, it is what no one can be deprived of it. Human Rights are civil liberties and freedom. These liberties are authorized over all human beings. Supporters of Human Rights state that everyone possesses specific rights simply because they are humans. All human beings are born free. They enjoy equal self-respect and rights. People should act towards each other in a spirit...