People are aware that coal, which has gone to mass production, is still a finite resource, though _________ than either oil or gas.
举一反三
- Quantity of energy contained in the atmosphere is ______. A: smaller than that in coal alone B: smaller than that either in oil or in gas that we have on Earth C: greater than that in coal, oil and gas on Earth combined D: greater than that in coal, oil and gas on Earth, respectively
- Coal, oil and natural gas are __________ and __________. A: clean ... recyclable B: renewable resource ... unconventional energy C: non-renewable resource ... conventional energy
- The role and position of unconventional oil and gas resources in global oil and gas production are becoming more and more important. Which of the following are unconventional oil and gas resources? A: Tight rock oil and gas B: Mud shale oil and gas C: Coalbed methane D: Oil shale E: Oil sands F: Natural gas hydrate
- which one is true about Russia A: It is an African nation with a large area of land B: It is rich in tropical agricultural resource C: It imports large amount of wheat and natural gas. D: It is one of the biggest exporters of natural gas and oil
- Which of the following is clean source of energy () A: Coal B: Oil C: Solar D: Natural<br/>gas