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Questions and Answers
What has the global increase in greenhouse gases been attributed to?
What has the global increase in greenhouse gases been attributed to?
- Reduced rainfall in many parts of the world
- Trends in population and lifestyle
- Coal mining and electricity generation (correct)
- Industrial pollution in developing countries
What proportion of all greenhouse gases is created by coal?
What proportion of all greenhouse gases is created by coal?
- 90 per cent
- 18 per cent
- 14 per cent
- 27 per cent (correct)
How does current research aim to increase the energy-producing efficiency of coal?
How does current research aim to increase the energy-producing efficiency of coal?
- Extracting CO2 from it
- Burning it at a lower temperature
- Developing new gasification techniques (correct)
- Recycling greenhouse gases
Compared with ordinary coal, how do 'clean' coals generate power?
Compared with ordinary coal, how do 'clean' coals generate power?
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To control dust at mine sites, what do mining companies often use?
To control dust at mine sites, what do mining companies often use?
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Which factor is NOT mentioned as contributing to the global increase in greenhouse gases?
Which factor is NOT mentioned as contributing to the global increase in greenhouse gases?
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