Coal can be converted （） gas by burning
举一反三
- Burning coal, oil and natural gas are ways to reduce carbon dioxide in the atmosphere.
- Burning coal, oil, and natural gas has serious and ___ negative impacts on public health. A: habitable B: close C: negligible D: long-standing
- 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
- Solar panels, wind turbines, hydro power and geothermal energy and hydrocarbons (natural gas or coal) can all be used to produce hydrogen (a primary energy).
- _____________ is the process of extracting coal from the ground. A: Overfishing B: Overconsumption C: Coal mining D: Burning of fossil energy sources