Coal and oil are most_materials for the manufacturing of pla

英语翻译For generations coal and oil have been regarded as the t There are coal,oil and metal ______ buried deep in the groun 英语高手请进the earth has limited supplies of coal and oil 急 the burning of gas ,oil,and coal has created acid rain.(as a the use of coal and what are the differences between 'hard coal' and 'soft coal' As there is less and less coal and oil,scientists are explor Oil and coal come from the plants and animals that died___of With coal and oil ____,what long-term effects of global warm Linda worked for the Minnesota Manufacturing and Mining Comp Linda worked for the Minnesota Manufacturing and Mining  英语翻译Some companies have made the manufacturing of clean and