Technological development and social change

Science and technology are essential ingredients of modern life. They transcend local boundaries and touches lives of everyone. Evolution of mankind can be seen in terms of technological evolution as well. Invention of fire and wheel changed the face of mankind. Various historical epochs - hunter-gatherers, agrarian society and industrialist society are distinguished from each other in term of technological advancement.

The technological factors represent the conditions created by men that have a profound influence on his life. Technology is product of civilization. According ____ _______ ______ ________ __________ _____ ____.
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