What are planetesimals?
A) very small planets
B) satellites of the giant planets
C) planets that are found orbiting other stars
D) large chunks of material (1 mm to several km in size) from which the planets were formed
Correct Answer:
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Q46: Astronomers believe that many satellites of the
Q47: A huge interstellar cloud collapsed into a
Q48: Which of the following features of the
Q49: One reason the planets near the Sun
Q50: What are interstellar grains?
A) tiny dust particles
Q52: How did the natural satellites in the
Q53: Which of the following features of the
Q54: The numerous craters we see on the
Q55: Ice giants have been discovered orbiting very
Q56: Which dwarf planet does not have a
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