In terms of equivalent calorific value, the lowest price among coal, oil, natural gas and renewable energy is ( ).
A: oil
B: coal
C: renewable energy
D: natural gas
A: oil
B: coal
C: renewable energy
D: natural gas
举一反三
- Coal, oil and natural gas are __________ and __________. A: clean ... recyclable B: renewable resource ... unconventional energy C: non-renewable resource ... conventional energy
- Fossil fuels like coal, oil and natural gas are non-renewable energy sources.
- When conventional heating cannot be avoided, the energy carrier will define carbon emissions. What is the order of coal, oil, and natural gas? A: oil < gas
- Which of the following is clean source of energy () A: Coal B: Oil C: Solar D: Natural<br/>gas
- 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