The development of science and technology makes our life more comfortable and convenient.However,scientists have created many problems,which are not easy to be resolved,such as air pollution,the deterioration of environment and the scarcity of natural resources,to which we must some solutions.
Modern science and technology render people many advantages.Modern telecommunication shortens the distance between people and makes communication much easier.Internet is widely used now not only for collection of abundant information but also for correspondence.Email,the most effective communication device now,is becoming very popular.Besides,telephone and mobile phone make contact more convenient than before.