Расположите пропущенные предложения в таком порядке, чтобы получился связный текст
1_______. 2_______. Technology makes things happen. 3_______. For example, people had made different objects from iron for centuries before they learnt the structure of the metal. 4_______.
Science has contributed much to modern technology.
Science attempts to explain how and why the things happen.
But not all technology is based on science.
But some modern technologies, such as nuclear power production and space travel, depend heavily on science.