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Questions and Answers
Which energy source is an example of non-commercial energy?
Which energy source is an example of non-commercial energy?
- Coal
- Firewood (correct)
- Electricity
- Natural gas
What is the primary purpose of commercial energy in the modern world?
What is the primary purpose of commercial energy in the modern world?
- Agricultural development
- Industrial development (correct)
- Household use
- Transport development
Which energy source is an example of primary energy?
Which energy source is an example of primary energy?
- Steam
- Natural gas
- Coal (correct)
- Refined petroleum products
What are secondary energy sources mostly converted into in industrial utilities?
What are secondary energy sources mostly converted into in industrial utilities?
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What distinguishes primary energy sources from secondary energy sources?
What distinguishes primary energy sources from secondary energy sources?
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What are the criteria used to classify energy into several categories?
What are the criteria used to classify energy into several categories?
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Give examples of primary energy sources.
Give examples of primary energy sources.
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What are the most important forms of commercial energy?
What are the most important forms of commercial energy?
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What are examples of non-commercial energy sources?
What are examples of non-commercial energy sources?
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What is the main purpose of non-commercial energy according to the text?
What is the main purpose of non-commercial energy according to the text?
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