People have always tried to make their life safe and comfortable — and that has always been the main reason for __________(TECHNOLOGY) progress. However, even the most _________ (IMPRESS) of our achievements cannot compare with the wonders created by nature. Wise nature equips all the creatures with appropriate instruments — wings, fins, teeth, sharp vision and hearing. Animals, fish and birds have a wonderful sense of ___________(DIRECT) and the ability to sense __________(DANGER) situations. People seem to be the most __________(HELP) of all living beings but they were given brains as a _____________(POWER) tool for survival and development.