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Energy Fundamentals Quiz

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Questions and Answers

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?

Agricultural development

Industrial development (correct)

Household use

Transport development

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?

Steam Signup and view all the answers

What distinguishes primary energy sources from secondary energy sources?

Found or stored in nature Signup and view all the answers

What are the criteria used to classify energy into several categories?

Primary and Secondary energy, Commercial and Non-Commercial energy, Renewable and Non-Renewable energy Signup and view all the answers

Give examples of primary energy sources.

Coal, oil, natural gas, and biomass (such as wood) Signup and view all the answers

What are the most important forms of commercial energy?

Electricity, coal, and refined petroleum products Signup and view all the answers

What are examples of non-commercial energy sources?

Firewood, cattle dung, and agricultural wastes Signup and view all the answers

What is the main purpose of non-commercial energy according to the text?

Non-commercial energy is often ignored in energy accounting Signup and view all the answers