Suppose that the temperature of the solar nebula had been much colder. How might the Solar System look different today?
A) Terrestrial planets may have formed at a larger distance from the Sun.
B) The gas giant planets might be bigger and farther from the Sun.
C) The gas giant planets might be bigger and closer to the Sun.
D) More planets would have formed.
C
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Polyurethanes result from the reaction of a(n) _________and an isocyanate.
Fill in the blank(s) with the appropriate word(s).
Which of the following represents the longest distance?
a. One parsec b. One astronomical unit c. One light-year d. One right ascension
Rays that go through the focal point to a concave mirror return:
a. back on themselves. b. parallel to the optic axis. c. perpendicular to the optic axis. d. at many different angles from the mirror surface. e. at many different angles relative to the optic axis.
Granite does not readily form near oceanic-oceanic convergent boundaries because
A) granite forms from granitic magma and most oceanic material is basaltic in origin. B) the magma formed at this type of boundary is not conducive to producing granitic type rocks. C) oceanic-oceanic convergence often results in the eruption of andesitic lavas. D) all of the above