... until the last century. With Name: ____________________ Class: 9/ ___ - STT: _____ TEST FOR YOU (Unit 5-6-7) the coming of the industrial revolution, it was soon realized that production (2) if ... It is believed that more people (4) if oil and gas were not so (5) availed. There is more than (6) coal in the world for man’s needs for the next two hundred years if our use of coal (7). Unfortunately,...