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Which of the following is not a characteristic of the inner planets?


A) They are relatively smaller than the outer planets.
B) They have very few, if any, satellites.
C) They all have solid, rocky surfaces.
D) They all have substantial atmospheres.
E) Their orbits are relatively closely spaced.

F) None of the above
G) C) and D)

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How is Einstein's famous equation, E = mc2, important in understanding the Sun?


A) The Sun has a magnetic field strong enough to influence the atmospheres of the planets.
B) The Sun is extremely massive.
C) The Sun generates energy to shine by losing 4 million tons of mass each second.
D) The Sun's surface temperature is about 6,000° Celsius.

E) A) and B)
F) A) and D)

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