Human beings from the early times have been interacting with the environment and modifying it according to their needs. Early humans adapted themselves to their natural surroundings. They led a simple life and fulfilled their requirements from the nature around them. But their needs kept on increasing. They became varied also. To fulfill these varied needs, humans learned to grow crops, tamed animals, and began a settled life.
The wheel was invented, surplus food was produced, the barter system emerged, trade started and commerce developed. The industrial revolution made possible large scale production. By and by transportation became faster. The information revolution made communication easier and speedy across the world. In this way, human beings adapted to the environment in order to fulfill their needs.