_____________ is the process of extracting coal from the ground.
A: Overfishing
B: Overconsumption
C: Coal mining
D: Burning of fossil energy sources
A: Overfishing
B: Overconsumption
C: Coal mining
D: Burning of fossil energy sources
举一反三
- 中国大学MOOC: _____________ is the process of extracting coal from the ground.
- Coal mining industry in Britain provides _______ of the energy consumed in the country.
- Fossil fuels like coal, oil and natural gas are non-renewable energy sources.
- In the future, China's energy consumption will still be dominated by fossil energy, in which coal is the main energy.
- 5. There are coal, oil, and metal ______ burried deep in the ground. A: sources B: substances C: resources D: properties