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(Solved): 2. 3. (D) the interstellar cloud flattening into a disk Astronomers can infer the existe ...



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(D) the interstellar cloud flattening into a disk Astronomers can infer the existence of a planet around a star by observing which of these? [Describe how astronomers both find planets around other stars and determine exoplanet properties] A direct observation B changes in the physical size of a star (C) cyclic patterns in shifts of a star's spectrum (D) changes in the mass of a star Which of these best explains why inner planets are not made mostly of volatiles? [Explain how temperature at different locations in the protoplanetary disk affects the composition of planets, moons, and other bodies] volatiles did not exist in the inner Solar System B when the interstellar cloud collapsed, volatiles were preferentially thrown outward into larger orbits C the protoplanetary disk having higher temperatures at closer distances to the proto-Sun (D) the uniform temperature of the original interstellar cloud he fact that outer planets are larger and gaseous and inner planets are smaller and rocky is best explained by which of these? Explain how temperature at different locations in the protoplanetary disk affects the composition of planets, moons, and other odies] A) angular momentum being conserved as the interstellar cloud collapses B) the protoplanetary disk having lower temperatures at larger distances from the proto-Sun (C) most of the angular momentum being contained in the planets


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The fact that outer planets are larger and gaseous and inner planets are smaller and rocky is best e...
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