Radio Maps of the Spiral Arms of Our Galaxy

question 82

Multiple Choice

Radio maps of the spiral arms of our galaxy

• A)reveal that our galaxy is a grand design spiral.
• B)map the location of hot O and B stars by the radio radiation they emit.
• C)reveal that the spiral arms are winding up and growing closer together.
• D)reveal that the Sun is currently located in the center of a spiral arm.
• E)map the location of dense neutral hydrogen clouds.

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