Which of the following is true of the eccentricity of an ellipse?
A) It tells you the length of the ellipse.
B) It tells you the shape of the ellipse.
C) It is half the length of the shortest diameter of the ellipse.
D) It is half the length of the longest diameter of the ellipse.
Question 2
Which of the following is true of early astronomers?
A) They knew that there were many other galaxies in the Universe.
B) They thought the entire Universe consisted of Earth, the Sun, the Moon, and five other planets.
C) They knew that the planets were made of rock and gas, much like Earth.
D) They thought that stars were other objects like the Sun and that we lived inside a galaxy.
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