What wavelengths have astronomers used to map and study the distribution of the giant molecular clouds in space?
A) X-ray
B) visible
C) ultraviolet
D) radio
Correct Answer:
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Q20: Interstellar extinction is the
A) assimilation of interstellar
Q21: How is gas distributed in interstellar space?
A)
Q22: What is the typical mass of a
Q23: What fraction of the mass of a
Q24: In which part of the electromagnetic spectrum
Q26: What causes the characteristic blue color of
Q27: Which of these easily observed molecular species
Q28: When looking for molecular hydrogen, astronomers actually
Q29: In star-forming regions in interstellar space, which
Q30: The mass of a particular interstellar giant
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