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Exam 18: The Interstellar Medium: Gas and Dust Among the Stars

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Exam 1: Charting the Heavens: The Foundations of Astronomy106 Questionsadd course
Exam 2: The Copernican Revolution: The Birth of Modern Science105 Questionsadd course
Exam 3: Radiation: Information From the Cosmos113 Questionsadd course
Exam 4: Spectroscopy: the Inner Workings of Atoms99 Questionsadd course
Exam 5: Telescopes: The Tools of Astronomy111 Questionsadd course
Exam 6: The Solar System: Comparative Planetology and Formation Models152 Questionsadd course
Exam 7: Earth: Our Home in Space108 Questionsadd course
Exam 8: The Moon and Mercury: Scorched and Battered Worlds113 Questionsadd course
Exam 9: Venus: Earths Sister Planet96 Questionsadd course
Exam 10: Mars: a Near Miss for Life110 Questionsadd course
Exam 11: Jupiter: Giant of the Solar System115 Questionsadd course
Exam 12: Saturn: Spectacular Rings and Mysterious Moons123 Questionsadd course
Exam 13: Uranus and Neptune: The Outer Worlds of the Solar System116 Questionsadd course
Exam 14: Solar System Debris: Keys to Our Origin141 Questionsadd course
Exam 15: Exoplanets: Planetary Systems Beyond Our Own81 Questionsadd course
Exam 16: The Sun: Our Parent Star118 Questionsadd course
Exam 17: The Stars: Giants, Dwarfs, and the Main Sequence115 Questionsadd course
Exam 18: The Interstellar Medium: Gas and Dust Among the Stars105 Questionsadd course
Exam 19: Star Formation: a Traumatic Birth114 Questionsadd course
Exam 20: Stellar Evolution: The Life and Death of a Star108 Questionsadd course
Exam 21: Stellar Explosions: Novae, Supernovae, and the Formation of the Elements108 Questionsadd course
Exam 22: Neutron Stars and Black Holes: Strange States of Matter130 Questionsadd course
Exam 23: The Milky Way Galaxy: a Spiral in Space110 Questionsadd course
Exam 24: Galaxies: Building Blocks of the Universe107 Questionsadd course
Exam 25: Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos106 Questionsadd course
Exam 26: Cosmology: The Big Bang and the Fate of the Universe102 Questionsadd course
Exam 27: The Early Universe: Toward the Beginning of Time113 Questionsadd course
Exam 28: Life in the Universe: Are We Alone106 Questionsadd course
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The compositions of dark clouds can be determined through absorption spectra.

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Question 101

Almost all molecules in space are based on what element? Why?

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Question 102

Complex molecules in space are found:

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Question 103

The gas density in an emission nebula is typically about how many particles per cc?

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Question 104

The 21 cm line of hydrogen is strongly absorbed by interstellar dust.

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Question 105
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