Sun is near-perfect sphere of ___________?
Correct answer: C. Hot plasma
- A. Solid
- B. Cold plasma
- C. Hot plasma
- D. Yellow gas
Explanation
The Sun is composed primarily of extremely hot plasma, an electrically charged state of matter. It is not a solid or ordinary yellow gas, although its visible light appears yellowish from Earth.
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About Inventions and Discoveries
Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
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