Natural Resources : Because of the tremendous increase in population, the resources which should be used wisely are being used indiscriminately. Some ...

Science in Iron Age: The culture was being developed between India and Greece e.g. caste structure. Higher level work was given to higher caste people while ...

Arab Science: The Arabs traced the store of knowledge step by step back to the Greek works. They translated these writings, absorbed them and developed them ...

During the medieval times in India, the greatest Indian contribution was in the use of decimal system. The Indians also tried to calculate latitudes of some ...

PRIMITIVE HUMAN SOCIETY The main aim of the primitive human society revolved mainly around food gathering and hunting. Food Gathering and Hunting to survive, ...

Science is a organised body of knowledge consisting of facts, which are properly integrated into systematic theories and principles, which offers a systematic ...

Communication medium like TV, films, charts or other illustrations play a very important role in promoting education. Knowledge from one person to another can ...

Pyramid of energy is a graphical representation of amount of accumulated energy per unit area in different trophic levels of a food chain. An energy ...

Wind energy has been used for hundreds of years for sailing, grinding grain and for irrigation. Energy in wind can be economically used for generation of ...

Biogas, as you know is a source of energy for cooking. Using a simple process, cattle dung is used to produce a gas (called biogas) that contains 55-70 per ...