Why is it important that new comets enter the planetary system on elliptical orbits rather than parabolic orbits?
A) It shows that they aren't just intruders from interstellar space
B) Objects on elliptical orbits travel faster than those on parabolic orbits
C) It makes it possible to predict their paths through the planetary system
D) It makes them less likely to hit one of the planets
Correct Answer:
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Q1: Most of the asteroids are located between
Q2: Impact craters
A)Appear to have never been produced
Q3: Which of the following best describes the
Q5: Which of the following would not be
Q6: A comet's nucleus is _ in diameter.
A)A
Q7: Which of the following is the reason
Q8: Which of the following is good evidence
Q9: What kind of bodies make up the
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Q11: When happens to the tail and coma
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