Discuss the features and characteristics of the Sun? Are they thought to be unique to the Sun or are they typical of other stars?
How do any of these structures relate to the process of nuclear fusion which is thought to produce the Sun's energy?
The Sun is large and extremely hot with nuclear fusion occurring at its center. These features are similar to many stars, though some stars are larger and exert more gravity and some stars are smaller. The larger the star the more the nuclear fusion that can occur, and therefore the hotter the star can be.
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Which of these has the highest percentage of wasted energy?
A. incandescent light bulb B. electricity used in your home from a nuclear power plant C. the internal combustion engine in your car D. coal burning power plant
Clouds ____ the temperature of Earth's atmosphere due to reflection of solar radiation and ____ it due
to greenhouse re-radiation. a. raise; raise b. raise; lower c. lower; raise d. lower; lower e. Clouds have no impact on the temperature of Earth's atmosphere
Which of the following animals uses a very large, oil rich liver to help reduce their density and float more easily?
A) Nautilus B) Sepia C) Shark D) Spirula E) Tuna
What is the source of energy inside the Sun?
A. Nuclear fusion B. Radioactive decay C. Nuclear fission D. None of these choices are correct